Bump*******

The Concave and Convex World, the Protagonist Is Male! Male! Tell Men Important Things Three Times

I want to read a book similar to "I am Jiajia's little brother". I prefer to watch sadistic ones. Anyway, it's fine. I don't want a female character. It's fine if it's a dual protagonist⸝⸝ ᷇࿀ ᷆⸝⸝