Sigh, the bad translation fromrussian/spanish is one thing but the story have problems.
MC decided to take responsability, the guy was unconscious and frotting from the mouth.
MC is poor as shit and all the insurance money must got to his mother cures, getting sued for knocking out a rich child would drain his account and then kill his mother, and he had no reason to lie, he shoud have helped by loudly speaking the truth about the events, bastard tried to his a girl and got beaten from her.
Like this MC is the only one that will be punished when bully will enjoy it.