Okay it's a short game so I'll try to keep the review short
ART:
S'okay. For the quality you see in the screenshots, the animations in-game are pretty much the same. The worst thing about this game's art design is this awful one-track background music. It's louder than the sound effects and there's no way to adjust BGM/SFX ratio, or even mute the whole game without opening up Volume Mixer on Windows.
GAMEPLAY:
It's a point and click game, which unfortunately has some annoying point&click pitfalls, like a little weird logic where I know generally what to do, but I'm missing an arbitrary extra step and the character doesn't have an inner monologue or anything. Like, in a graphic adventure game made in something like RPGM, I would try to put the "Frozen Liquid" into the pot on the hot stove, and the character would say something like "I can't put this straight in, it'll burn." whereas trying to put in the "Frozen Slime" she'd say, "Slimes are too delicate for that." which would clue the player in to what needs to be done without just handing them the answer. There's also times I knew exactly what to do, but just failed to click on the correct pixels in the correct order. Would've been nice to have interactables get highlighted when mousing over them. I do like that once you've made a sex action available, you can go back to it any time you want.
STORY:
Nonexistent. Minus zero points.
She wants to be the one who devours the sun. Demons, they wanna have fu-un~ Oh, demons just wanna have fuuun~ That song is now stuck in your head. Hey, at least it's better than this game's BGM.