This subplot is beyond cringe.
Author seems to think it's cool to create characters who are not normal and then portray them as people who would harm others.
What the author is doing here is more harmful than what the new character is doing.
In real life, it's not characters like this who beat up and harm women. It's people like Minisk and the people who placed bets on ML not being able to do push-ups who are dangerous and enjoy harming other people.