穿书的我绝不向渣男主屈服 (Associated Names)

I traveled through time and became a supporting character in a book, only to find out that my role was one of the male protagonist’s harem, wasn’t it! But I am a man! Fortunately, the plot has not yet begun, and everything can still turn around! Harem hero? Be your little virgin!

A Hentai World is a Dangerous Place, Especially if Your Best Friend is a Hentai Protagonist and You Are a Trap.