Blood of the Immortal

Kaito is your typical everyday Japanese delinquent. Skipping school and causing trouble is the norm. That is until one day he's dared to go into an abandoned mansion that's not so abandoned. His life begins to change as the people around him are not what they seem, and he's stuck trying to figure out who and what he really is. Ryunosuke never thought he'd be stuck taking in a fledgling. All because he had a whim to keep a certain young delinquent alive. As troublesome as that is, Kaito is bringing more trouble with him than he could have imagined. Suddenly, getting revenge isn't such an unobtainable task, but why is Kaito seem to be in the center of everything going on?