yotsubato(if I remember correctly mc said he found her blood alone(kinda the little girl is a vampire Taimashi to akuma chan ohayou toka oyasumi toka Paljae(BL or ai Living with Mr.predator(I think the uncle adopts sister kids...BL Isekai yururi kikou
does anyone know any similar bl's like this? any with a similar mc.. or not even a bl but a male mc that kinda "adopts kids"