Im looking for a yaoi manga i was reeding it and lost it somehow

I think its still ongoing its about a transfer student the first day he came to his new school he felt that its strange and when he was walking in the hallway some bats attack his so he run away and tried to open the closed curtain (all the curtains were closed in the morning)but some student appeared and stopped him this student appeared like a vampire I don't remember what happened afterwards maybe he sacked his blood or something please helpme find it