Look I gotta be real, this game is a mess but like, the kind of mess you keep clicking through anyway. The whole premise is some overworked salaryman dies and a succubus is like "sign here lol" and now you're dimension hopping through anime universes trying to fuck enough people to get reborn. Chainsaw Man characters, Naruto characters, that dress up darling girl, they're all just... there. Nobody explains why Makima is in the same room as Hinata but honestly who cares.
The 3D models are janky as hell. Sometimes a tit just clips through a shoulder and you're supposed to pretend that's hot. But then there's this one scene with the succubus where she's doing that thing with her tongue and the animation actually syncs up perfectly and I forgot about the clipping for a solid thirty seconds. The corruption mechanics are weirdly specific too, you get these devil traits that let you manipulate people but the game never really explains the limits. One minute you're using basic seduction, next thing you know you've transformed some milf into a futa dom and you didn't even mean to pick that path. There's avoidable pregnancy content but the menu toggle is buried in like three submenus, took me forever to find it.
The voyeurism scenes are where it gets interesting though. Peeping through keyholes in the Naruto universe, watching group stuff happen in the background while you're supposed to be doing mission prep. The game doesn't care about canon at all, it's just throwing characters into increasingly unhinged situations. Male protagonist stays a virgin for way too long unless you specifically grind the oral scenes, which is a choice I guess. The writing flip flops between surprisingly decent parody dialogue and then just absolute nonsense where characters say things nobody would ever say during sex. "Your chakra feels amazing" no it doesn't shut up.
Paranormal tag makes sense cause you're literally a ghost contractor for a demon, but then they throw in romance routes that feel completely disconnected from the whole "harvesting sexual energy for hell" thing. Like am I supposed to care about Tsunade's feelings or am I just trying to not get eternally damned? The game can't decide either. Still played through three universes though so what does that say about me.