Abandoned by God [Diabolik Lovers x Male!Reader]

As the blood son of Seiji Komori and a first year in Ryōtei High School Campus , [NAME] Komori decides to visit his older and adopted sister Yui. There he meets the most sick and wicked set of brothers that Yui has to deal with, not only sick but something he thought of mythical creatures. Vampires. Now the only thing...