I'm glad he turned into a kid..
It's a great opportunity for character growth.
You can tell from the way he acts that he has been using brutal force head on to plow through his enemies his whole life. In a way, he is antisocial and really his only purpose in life has been to challenge formidible opponents. His transformation into a girl limits his OP powers and allows him to understand how to rely on others more, forming meaningful relationships. Also, the fact that he quarrelled with a little girl and the fact that he falls to same trap 2x (magic circle) times show signs that he is lacking in mental maturity. The time he spends as a little girl perhaps can compensate for the childhood he never had, make him a little wiser, and give purpose in his life.
After all, an OP MC that just wanders around trying to get more powerful for the sake of getting powerful to challenge other random powerful characters, and brutally crushes them all because he's OP isn't exactly worthwhile to read (at least to me), since I'd just go find 10 cultivation chinese manhua I haven't finished for that
I did hope that he was gonna mature and i was hoping the author would do an unexpected twist in the story since i also read a lot of OP MC who gets more powerful and they were pretty much have the same plot but i guess the twist the author gave is too much for me.
It wouldn’t have mind for me if he turned into a younger boy or maybe even a younger girl version of him but he just had to turned into the girl who i hated ever since her first appearance in the story （￣へ￣）
Oh, well I think that's a litte acceptable.
I really liked it but why the fuck did they have to this to him? (╯°Д °)╯╧╧
Aint comin back until he turns to normal