Fan Casting Weak Hero

Once the bullies target you, it’s game over. The school is run by tyrants whose favorite hobby is tormenting the weakest kids in class. But then Gray arrived. This mysterious new student threatens to dismantle the established order. He may be small in stature, but his calculative and brutal fighting leaves unsuspecting opponents lying on the floor begging for mercy. Now the school's toughest bullies have to scramble to take down this new and unusual hero. [Note: The webtoon and live-action adaptation are both awesome in their own ways. One of the best kdramas this 2022! It hasn’t been officially announced, but I hope they actually do a S2.]