Mahiru Shirota firmly believes that simple is best and troublesome things should be avoided at all costs. It is troublesome to do nothing and regret it later—and this ideology has led the 15-year-old to pick up a stray cat on his way home from school. As he affectionately names the feline Kuro, little does he know that this chance meeting will spark an extraordinary change in his everyday life.
One day, Mahiru returns home to find something quite strange: a mysterious young man he has never seen before. His subsequent panic results in the uninvited guest being exposed to sunlight and—much to Mahiru's shock—transforming into Kuro! Upon revealing himself as a mere lazy shut-in vampire, Kuro promises to leave once night falls. However, one disaster after another leads to Mahiru accidentally forming a contract with his new freeloader, dragging him into a life-threatening battle of supernatural servants and bloodthirsty beings that is anything but simple.+ More
More Seasons
Characters & Voice Actors
Kuro
Main
Kaji, Yuki
Japanese
Shirota, Mahiru
Main
Terashima, Takuma
Japanese
Arisuin, Mikuni
Supporting
Kakihara, Tetsuya
Japanese
Arisuin, Misono
Supporting
Shimono, Hiro
Japanese
Belkia
Supporting
Matsuoka, Yoshitsugu
Japanese
Doubt Doubt
Supporting
Tsuda, Kenjirou
JapanesePromotion Videos
PV 3
PV 2
PV 1
CM Mahiru version
CM Kuro version
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