Nightmare

This is something of a lost opportunity, on several levels.
The premise is interesting; the protagonist is battling her own cancer. But this is used almost entirely as a framing device. Actual monsters are generic fantasy fare - snakes, skeletons, slimes and so on. Bosses are symbolic of certain classes of cancer (and carry special abilities to match)... but, bizarrely, seem to be shown halfway off the top of the screen.
Mechanics are bog-standard JRPG fare with HP/mana and item names renamed to be consistent with the "battling cancer" theme.
Furthermore, you're forced to run each dungeon three times, with quite minor variations in content; only the monsters change, and only between the first and second runs. It's painfully grindy. Eliminate that repetition and the game length would be sub three hours.
The protagonist has almost no detectable personality beyond "dubiously over-18 child with terminal cancer." It's a bit weird how they seem to want to play the "sick child" card in a nominally ero game.
Speaking of which - Ero content is also fairly uninspired.
A game along similar lines, with a bit more imagination in the mechanics, less grindy and (while this might be a strange thing to say on Fakku) minus the ero content would be much more interesting.