A downloadable confession for Windows, macOS, and Linux

A preface to whoever may read this (probably only Angela or my future self). This is my first time writing in a while so this is probably gonna be painful to read. It's a diary anyway. What are you or I even expecting?

A slowburn dark yuri kinetic novel about a lesbian couple who wake up to discover they are trapped one thousand metres below sea level on the morning of their first anniversary.

Things may appear indistinct out in the open ocean. Perhaps it's best not to look too hard.

~13k words, 30-60 minutes

Made for Toxic Yuri VN Jam 2026

Credits

23noko: story, programming, cgs

chao: sprites, cgs

A special thank you to Kastel, canislatransed, Kirin and Lexi for beta reading

A full list of credits for non-original assets can be found in the credits.txt file

Content Warnings

This game is for adults only. It contains nudity and sexual situations, as well as content which may be upsetting to some.

The full list of content warnings can be found in the WARNINGS.txt file with the game. This is not a spoiler-free list.


The comments section may contain spoilers.

Download

Download
FF500-1.02-win.zip 307 MB
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FF500-1.02-linux.tar.bz2 284 MB
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FF500-1.02-mac.zip 315 MB

Development log

Comments

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This relationship truly felt like being trapped with the pressure of half a mile of water bearing down on you. The detail in depicting the character's mental states under the stress of sheer mundanity and the sea life metaphors were top-notch. I'll be thinking about that closing line for a while.

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i'm about to spew some bullshit so please correct everything i say wrong LMAO


first off. wow. wow wow wow this is probably the vn i was able to most connect with in a weird fucked up way. took me almost two hours just because i had to keep stopping to go "OH MY GOD WAIT AND IT'S" or "wait so it's written like this because" just like. i don't even know how to describe this other than to just copy paste all the notes i took. 

wonderful use of music. wonderful use of art. the girls were so pretty i love them. wonderful themes of asian disapora and chosen names being pronounced wrong and the links between everything and it's just. masterful. everything about this was created so masterfully. so beautifully weaved in and out. so so so so beautiful.

OK SPOILERS AHEAD BE AWARE this is literally just a copy paste of every thought i had during the game. please feel free to ignore it as it is VERY lengthy.


ctc is SO CUTE OH MY GOODNESSSSS

i've never been so engaged from the first few lines

this is really really really well done. LOVE the atmosphere not only from the dialogue but from the visuals AND REFERENCES OF VISUALS, the ambience, the music from the earphones no longer in the ears. love this

CHARACTERS ARE SO CUTEESJDHGJKDFGK

FISH orgy

oohhghghgh piano girl i love you i gotta know what happened

PEAK CHOPIN NOCTURNE ACTUALLY LIKE THE BEST ONE i played this my third semester at community college it's SO nice

NOOOOOOO IT'S NOT BEETHOVEN IT'S CHOPIN IT'S CHOPIN

OH MY GOD VIETNAMESE!!!!!! YES!!!!!!!!!!!!!!!!!!!!!!!

EEEEEHEHEHEHE I LOVE THEM

also i just adore the journal entry format of this it's so good

oh theres a sea monster there isn't there. oh there's a big sea monster getting foreshadowed huh.

ohhhhhhh the metaphorssssssss oh this one is so good

urgghhh headcanon aroace or just depressed ourgh i get you tay i get you

HOLY SHIT SECOND PEAK CHOPIN NOCTURNE I DROPPED THIS ONE BEFORE THE END BUT IT'S SO GOODDDDDDDD i think both are from the same opus? op. 9, same as the one everyone knows. i wonder if i can predict the next piece. i need to learn more poulenc.

THE BACKGROUNDSSSSSSSSSSSS ughhhh my dad used to own an aquarium and we'd often go to this fish shop aquarium type like this so it feels so much like being in first person for this. nostalgic. i need to go back. maybe this is my sign.

cum cloud

OUGHGHHH THE PARALLLS THE METAPHORS OGHH MY CLOWNFISH GIRL

NOOOOOO OH THE CATALYST FOR THE STORY HAPPENING and it's a month later oughh ohj boy this has perfect intentions for the story

oughhhhhhh the 3 a's autistic aro and asexual i love you tay

angela :(((( girl i love you

AWOOOOOOOOOOOOOGAAA HUMINA HUMINA jokes aside i LOVEEE these designs i love them so much

PISS MENTIONED how did it get on the sheets i must know. frankly if it's like a pissplay thing why WOULD you get it on the sheets, especially if you're trapped. seems like a b ad idea.

TWO VIETNAMESE OH MY GOODNESS i love vietnam!!!!!!!! :vietnam flag:

auhghh diaspora i'm slowly understanding this word more and more

ohhhh and this is why we didn't get her name either, just her last name

tay has a very nihilistic view of the world shaped by the way she grew up, it reminds me a bit of 2-4 '94 by kazehai and ppilotco if you've played that

ohhhh i think im starting to get it slowly? i'm a little slow on these things all considered but i see it as like, when you come out as trans you're often treated less as a person, less human, even if it's more aligned with who you are. tay is the type to realize this and play STRONG defense as a safety mechanism, and it's based in reality. it is really fucking scary to be trans!! especially when there's nobody else to support you!!! she's sorta grown up knowing that. so it's less about her being like "i know" and more like "it's not true based on the way i've grown." i think? please correct me if i'm wrong i absolutely want to hear the interpretation going into this

oh i didn't even think of race, yeah that's absolutely a huge aspect to this too. not only is it a connection to yourself, it's a connection to your family. there's nobody else quite like you in terms of heritage. it lives inside you yes, but when you cut out the people who are like you, that's a whole aspect of yourself you just. lose. it's so difficult. god damn.

i can't get over the excellence and brilliance of the language too like. just taking a second to look into the way things are written. wow. is tay the carcass? is that how she interprets the situation?

loss of memory. oh my god. tay the name not only as a loss of ethnicity ("easier" name so people can pronounce it), it's also a loss of everything she was. i don't know where angela stands on this. whether she's doing this to intentionally hurt her (tay? thanh? i don't know which to use anymore. i worry one is her deadname. i worry that's what this story is all about anyways) or in, as she mentions often, naivete. "maybe i really am just tay after all"

i wanna keep playing but im so stumped at the self-aggrandising masturabtory word vomit bit. i want to understand this in the way an english masters would study a piece of literature. but alas i will come back later

oh my god

angela?????? girl what are you saying i'm starting to get tay (?>>)'s position on this now better

auughhhh fuck oh myy god

and the music clarity

oo hk,my gdo oh my gdo i have to reread all of this like three times now to understand it

so tay doesn't want a cab home because she's just been seen as like. just been seen? observed? she's been stalked by this girl for a yearish now over just a party. and there's this confusing mix of "this girl who i've talked to ONCE knows so much about me?? what the fuck????" and "this girl who i've just talked to at a party was intrigued enough by me to want to know me. she wants me. she wants me." and the following scene is just this horrible mix of hatred for both of them, and love and adornment for being seen, and just wanting the moment to pass, and not wanting to think, and understanding that she loves her and she loves her and this is probably the only thing she'll ever get and oh my goddddd. i'm sure i got most of this wrong i am very bad at understanding meaning but that's what i got out of this.

also holy shit the backgrounds are so good i love the slow panning and zoom and the slugs(?)

aah but then what do the slugs mean? what ddes the annihilation mean? it's this mix of her own hatred for herself and her lack of ethnicity and connection in that sense, and lack of autonomy for being trans, fitting into the mold again, the hole to fill? this is so like. 30 minutes to an hour my ass i'm gonna study this for days to come i gotta read this multiple times

there's so much i just can't understand right now but oh my god it's so pretty and so clearly like. i can tell there's SO MUCH here

PRETTY ARTTTTT and also i think like half of the games with sex sounds has used this same bed squeak. me included.

oh my god. oh im startnig to get all the symbiosis and parasites and aromantic and becoming one. oh my god.

"i am whaever she needs" not only in the context of angela, but in the context of being trans, and in the context of being not in Vietnam and losing that culture, and in being what her family (just her dad now, jesus oh my god) wants because it's the only ties she has left. oh my godddddd

"my brain does not process the target as me"

oh my god and they're one and these are all reflections not only on angela, but also on herself because she is one

actually this is making me think of how similar pain and pleasure are, two sides of the same coin. is this why sex has so much play regarding death? loss of senses, pain, choking.

also the poulenc playing throughout this is just haunting. so haunting.

oh my god and the drooling is like the cotton mouth of the fish in the beginning.

this is recminiscent of how i was in my last relatinoship (WITHOUT THE VERY TOXIC BITS, JUST LIKE THE SERVING A PURPOSE ASPECT) and i turned out plural. so this is very much like. oh i get it.

just checked the f2. what do you MEAN i still have a third of the vn to go holy shit.

PISS!!!!!!!!!!!!!!!!!

oh my god the art

"this place must be hell"

oh my god i completely forgot about the whole monster thing. oh my god oh my god.

the claustrophobic fel of te ui and the 4:3 aspect ratio oh my god as im typing this the music is getting louder oh my god

angler fish angela fish angela's fish

oh my god the angler fish is angela (angela fish) and the smaller one is thanh

oh my god

no wait the angler fish is something else. and giving up joy was symbolic of changing the relationship. if joy is thanh, then it's thanh giving up her self of self for... gas? or in the relationship, normality maybe.

or maybe it's just death. things are looking that way rn.

WHAT.

my body has collapsed in on itself at this point oh my god

THE FULL NOCTURNE SET OH MY GOD I DID PREDICT IT!!!!!!!!

oh god and the final embrace is symbolic of so much more. it's an acceptance.

is the water a metaphor (?) for dissociation?

oh my god?????????????????????????????????????????????????????

(+2)

Girl who puts saltwater fish and anmenome in a tank without filters + Girl who sells saltwater fish and anmenome to irresponsible fish owner yuri....

Love love love the aquarium symbolism weaved into the story - Thanh and a fish scooped out of the ocean and placed into a suffocating tank for humans to view; the parallel between the deterioration of the aquarium tank and the deterioration of the two girls, fish pooping in the water they live in; the co-dependency of the anglerfish... 

I usually don't like the way asian diaspora themes are treated in media (I say as someone who is asian diaspora), but I thought the way you did it was really well done. You've captured the part of the diaspora struggle that can't be solved with therapy. The parallel between deadnaming and having people pronounce your chosen (asian) name wrong. Being told to just cut off your transphobic dad and having your resistance flattened down to just asian cultural differences, ignoring the fact that your dad has alzheimer's and you're literally the only one left in the family who can take care of him. Good stuff, good stuff. 

(+1)

It was very difficult for me to pull together the thoughts to make an appropriate comment. Your work always resonates with me (even if I lacked the self-awareness to "click" with No Mice in Heaven at first lol), and it feels like each of your games is even better than the last one. As someone with no true home, this one cuts particularly deep.

(+1)

this game is something else. it's so fucking unnerving, i'm left feeling dazed. the theme of the ocean is so fucking sick and i love how it comes up over and over again, in their literal scenario, in thanh's job, in metaphors, i love taking as much advantage of that theme as possible. and god the ending, once i realized angela had lied about having her cellphone and being trapped i wondered is the ocean fake somehow can they go outside??? but no. they can go to the hospital, but it's still underwater, and then they just fucking go back home again. it's crazy that the physical situation somehow feels less suffocating than the emotional situation. brilliant work

(+1)

oh god that was so good my stomach is like, still twisting into knots. Too real, too uncomfortable. Thanks for sharing! 

(+1)

nauseatingly tangible, incredibly gross. felt like being trapped. played this with two friends in vc and we were like ough this is too real. that absolutely sucked so good. so miserable we started dissociating. "my eyes started glazing over the orange text". the sex was AWFUL. as i told you before while beta reading, it really felt like being slowly submerged underwater. seeing this in its completed form was really nice. the music worked so well with the writing and the visuals. just opening up the game i heard my friend say "oh we're at the dentist!" which really set the mood lol.

being asians that exists in trans and queer spaces that are overwhelming white due to location and language, and also living somewhere that's basically the middle of nowhere, thanh's struggles really hit with us. it really is such a shithole. and yet, we can't really leave, because it's our familiar shithole. the aggravating, infantalising, and disturbingly fetishistic dialogue from angela was all too familiar. equating androgyny to asianness frame one had me screaming. there is no big city to escape to. everywhere is like this. and even back 'home', where we 'came from', isn't a place that will accept us, either. 

as thanh woke up on the hospital bed, and the lid of the aquarium closed, we could only feel dread. maybe it would have been better if she hadn't woken up.

thanks for sharing! we'll be talking about your game for a while :)

(+1)

How heartwrenching! Very complex stuff going on here, and I greatly enjoy the character design. Great job making it to the finish line!!

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A brilliant work of expressionism. 23noko excellently depicts a tragic relationship which is, rather than explosive with drama, slowly grinding to dust. The themes of water and fish to communicate the rote nature of Thanh's everyday drowning is fluent and effective. It is a relationship as though one has so much arsenic in their body that just one more fish will kill them. Full Fathom 500 is a must read.

(+1)

An incredibly gripping and crushing narrative, with a really stylish staging to boot. From Thanh's very sharp, biting narration style from the start, to the very uncomfortable and genuine fear thrust upon her during the very well written and throat tightening interactions with Angela, everything about their relationship and how it came to be left me stunned in my seat.

Truly masterclass work.

thank you for reading, porksbun!! im glad you enjoyed!! ^^ i really enjoy writing very pessimistic and bitter characters and putting them in a situation. in contrast to the mundane aspects of their relationship, i wanted the main catalyst driving them to be together be something quite bizarre that is never directly addressed between them.

(+1)

I'm struggling to express just what this meant to me without oversharing in the marketplace of ideas, so I'll just say: yeah that's how it is. Masterful work, I had to lean back in my chair and palm my face so many times reading this. I will remember this forever. 

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UOGH this means a lot considering ride home was an inspiration for the work. thank you so much! im glad it connected with you ^^

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i just finished reading this, felt the need to comment right away even though i already know ill be thinking about it far into the future too. devastating work, i felt breathless pretty much the whole time as the meaningfulness of everything continued to sink in while simultaneously new events kept punching me in the lungs. Your writing really sticks all the landings in bringing to the surface a sense of overwhelming dull pain that is sharp at exactly the right moments. thank you and i hope to read more from you in the future too

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thank you so much for reading, kolulu!! i enjoyed putting a lot of fish parallels in this, and im glad the tone was sufficiently suffocating :)

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ohh, this one was lots of fun (probably spoilers in following)....

the vibes were uncomfortable from the very beginning, but somehow i was still surprised by the intensity with which thanh dehumanises angela inside her head (positive) (extremely visceral). mouth rot seems incredibly apt for how these characters' sexual interactions seem to work and how dissociative the narration can feel around these acts. the slow (and unhappy) dimming of the protagonist's self, the way it feels as if she has surrendered to being consumed for a long long time - there's something so specifically bleak about a story where even in the opening flashback, the protagonist feels so hopeless. 

her lines about just accepting that relationships become more "subdued" and "practical" are also super interesting since those feel kind of normal observations on paper but absolutely don't seem to reflect the reality of the situation. also, angela's little fetishizing "compliments" that just sort of hang uncomfortably in the air and are only really met with silence or vague hesitation whenever they appear... i'm also really obsessed with how she literally calls herself a yandere like twice. immensely suffocating, thank you so much for the view into domestic hell.

(+1)

thank you for reading!! the way that thanh dehumanises angela in response to her being weird about thanh's race was definitely intentional, and im glad someone caught that. a lot of thanh's vocabulary is used to justify her avoidant behavior as 'normal for a longterm relationship'.

'domestic hell' is also a good way to put it. im glad you enjoyed ^.^

(1 edit) (+2)

It is validating to see a game connect gender dysphoria to that aimless diasporic alienation living in another country. This is a hopeless situation: Thanh’s family may have “escaped the war”, but they remain restless merchants seeking a home. But the salvation that they are promised is either death or co-dependency, a kind of Aquarium Dream where wounds can only be licked.

I just resonate with this game a lot – I am hungry for queer diaspora stories like this. It was awesome reading an earlier version of the script and then seeing how much it had improved too. This is certainly a game that people need to play.

(7 edits) (+3)

thanks for reading! a lot of this (particularly in relation to when angela has her two cents on the matter) came from how my own anxieties about assimilation aren't often understood by even well-meaning white people. the unspoken attitude is that simply by virtue of not being white, there is intrinsically an otherness that somehow makes true cultural assimilation impossible (and therefore they dismiss the anxiety).

angela is blind to the fact that in a town where whiteness is default, insisting that she becomes thanh's new family also means stripping her of what little vietnamese identity she holds left.

(+1)

Loved the way this used sea-life, excellent work

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thank you! ^^

(+2)

when their house sank to the bottom of the ocean i thought the massive outside pressure would straight up kill them only to learn it was being counteracted by the massive inside pressure that kills them instead. everything felt so dismal and suffocating and entirely unrelenting. i liked the usage of music in this and the doubling down on animal metaphors and trapping the reader in the traumatized psyche of a miserable woman for whom things only get worse in spite of and due to being genuinely cared for. really remarkable stuff thank you

(+1)

thank you for reading! im glad the atmosphere i was going for seemed to translate well! its always very fun to write deeply flawed (to say the least) characters like thanh

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stunned to silence multiple times. thank you for this.

(+1)

kicking my feet and giggling, im always happy to see people get such strong emotions from my work! thank you for reading!

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I enjoyed this--it's fruitfully unsettling! Thank you for putting it together. I'm impressed by how many ideas and images you keep up as consistent throughlines. I'm also impressed by the attention to small details, like the sound effect for saving. And it's always nice to see something using 4:3.

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thank you for reading! the use of 4:3 in this case was to make everything feel a lot more claustrophobic :)

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impeccable work. beautiful visually and thematically. i can feel the water pressure from reading this. what a pretty pair of parasites. thanks for sharing this story

thank you!!! ^^ the exact feelings i wanted the vn to have was either being slowly crushed or slowly drowned. im glad you enjoyed!