Unubore Joshi to Kakure Ookami

Kato Aina, a university student who has a tendency to get mentally unstable when hanging out with men who aren't used to being around women, meets Okamoto Asahi at a drinking party and finds him to be exactly her type!

She was hoping to have fun with the timid, sheep-like man, but when she takes him to a hotel, he suddenly transforms into an extremely carnivorous man!

https://mechacomic.jp/books/182494