Have you tried "God of Blackfield"It's kinda cringe with similar plotline like school bully, guns, gang vs solo, Mafia boss as friend, Beautiful FL, etc but the MC is a reincarnated 34 year old Mercenary.
DAYUMMMMMMM.
daaaaang , bro now gonna become a constellation itself ??
Same chapter repeated 4 times. Please fix it
Loll