Reviewed work by Onna Kishi no Shiro · View on DLsite
Yuly is an ordinary high school girl who takes a paid clinical-trial job at a remote island research lab, falls into a coma, and wakes up with psychic powers in the middle of a full-blown biohazard outbreak — cue zombies, orcs, magic beasts, tentacles, and very large bugs, all of which want to breed her. This is an R18 action RPG built around defeat sex, interspecies content, and an unusually flexible costume system. If “schoolgirl fights monsters, loses, and gets pumped full of monster seed” is your genre, this is aimed squarely at you.
What works
The core loop is simple and clearly stated: explore the underground facility, fight the creatures roaming it, and if you take too much damage, Yuly gets violated on the spot. The developer explicitly pitches the controls as easy and the difficulty as beginner-friendly, which is the right call for a defeat-H game — nobody buying this wants to grind a punishing action game just to see the scenes. Between fights you clear “embarrassing events,” dig up costumes and items, and work toward resolving the incident on the island, so there’s a light adventure structure holding the H-content together rather than a bare scene gallery.
The scene list is systematized in a way that will appeal to players who like escalation mechanics. Each of the six enemy types — zombies, orcs, magic beasts, tentacles, giant insects, and giant slugs — has internal-cumshot rape scenes in three variants keyed to Yuly’s arousal level (low, mid, high), so her state changes what you see rather than every defeat playing the same clip. Events and H-scenes have voiced moans. There’s also a toilet peeing scene for those who want it, and notably the description says Yuly both gets violated and does the violating — the reverse-rape tag isn’t decorative, she’s not purely a victim.
The costume system is the standout feature on paper. Outfits are split into equipment slots — head, top, skirt, swimwear/bottoms, socks — and every piece mixes freely: sailor uniforms in two colors, bikini and maid-bikini tops, school swimsuit, competition swimsuits, leotard, bunny gear, fishnets, multiple sock styles, and so on. The developer’s own example is bunny ears plus a sailor top and knee socks with nothing below the waist. For players who treat dress-up as half the appeal of these games, per-slot mixing is a genuinely better implementation than the usual handful of fixed outfits, and it feeds directly into the shame/humiliation angle the game is going for.
What doesn’t
Read the content list closely and it’s essentially one act repeated: defeat leads to rape with internal ejaculation, times six enemy types, times three arousal stages. That’s a respectable amount of variation within the formula, but if monster-on-girl defeat sex in that specific shape isn’t what you’re here for, the listed extras thin out fast — the toilet scene is the only non-combat entry mentioned. Buyers who want situational variety, a range of acts, or substantial story-driven H should temper expectations, because the description promises depth in one direction rather than breadth.
The technical caveats also deserve attention. The developer states outright that the game may not run on some PC environments and insists you play the trial version and read the readme before buying. That level of self-flagged fragility, plus an oddly specific minimum window size of 970×748 pixels, suggests an engine that may not play nicely with every setup. None of that is disqualifying, but it makes trying the demo first non-optional rather than good practice.
Who should buy this
This is a Japanese-only release with no English support, so factor that in — but the barrier here is about as low as it gets. It’s an action RPG with simple controls, and the core appeal (fight, get overwhelmed, collect and mix costumes) is fully legible without reading a word; machine translation or a texthooker is only worth bothering with if you care about the story events. Buy it if you’re into interspecies and tentacle defeat-H, dub-con and humiliation, and want a granular dress-up system on top. Skip it if insects and giant slugs are a hard no for you — they’re a third of the enemy roster — or if you need consensual-only content or a meaty narrative.
Verdict
6.5 / 10. A focused, accessible defeat-H action RPG with a genuinely good mix-and-match costume system and systematic scene escalation, held back by a one-note scene formula and compatibility warnings loud enough that the developer themselves tells you to try before you buy — so do exactly that.
This is the Japanese-language store. International credit cards and PayPal are accepted. The game itself is in Japanese.
Tip: If the DLsite page opens in Japanese, use the language selector at the top-right of the page (globe icon) to switch to English.