Dark Moon: The Blood Altar, Vol. 3 (Manhwa) (manga)

Now that Sooha knows the truth about Heli and his friends, she can continue her exciting high school life without a hitch…right? If only it were that simple! The principal of the orphanage where the boys were kept as kids has finally tracked them down—and she’s brought bad news along with her. The vampires, Chris, and Sooha’s pasts and futures may be more intertwined than any of them thought…and Sooha’s life is very much still in danger!