i have been looking a yaoi manga i read a loong time ago and all i remember is that the uke was younger looking almost like a kid(but maybe highschool? He was definitely shorter than the seme and had a smaller build) and the seme in the beginning was in like tha mafia i think and the other members wanted him to kill the boy, so the boy thought the seme was going to do it and he fainted(but the seme shot his shoulder instead of the boy and when the boy fainted it was perfect timing since the other members thought that the seme actually shot the boy when he just shot his shoulder) please help me find this manga thank u

Thank you so much!