Yakuza Girl

senguu fumihiro is a young boy that made a promise to his dying grandmother to find a good wife for himself. with this intention he enrolls in a prestigious school but on the first day his world turns upside down when all the students begin to kill each other and one of them even turns into a monster. he is saved by a girl named “akari” sent by one of the factions that rule the school to protect him. from baka updates