Trying to find the title

Im a fucking idiot i forgot the title but it was a vampire story, and the seme neighbor or childhood friend ( i dont know what exactly it is) acting really weird since they were a kid, he was always absent because "he was ill" but its because his a vampire, and he wont go out without a jacket or hoodie and when he knows his a vampire he became his blood donor he also learns that vampire uke keeps his self younger and also learns that the uke ran away from his father because he killed his first blood donor. The acquaintance of his father gave the seme a perfume so that his sweet scent won't be a hinder. Thats all i remember thank you