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
Main
Kakihara, Tetsuya
Japanese
Arisuin, Misono
Main
Shimono, Hiro
Japanese
Belkia
Main
Matsuoka, Yoshitsugu
Japanese
Doubt Doubt
Main
Tsuda, Kenjirou
JapanesePromotion Videos
PV 3
PV 2
PV 1
CM Mahiru version
CM Kuro version
Recommended for you
Condition Green
OVA
25m
Very Private Lesson
OVA
39m
Nana to Kaoru
OVA
24m
Amazing Nurse Nanako
OVA
26m
Saint Seiya: Saintia Shou
ONA
25m
Pan de Peace!
TV
3m
Senjou no Valkyria Special
Special
3m
Ladius
OVA
48m
Momokyun Sword
TV
24m
Dokyuu Hentai HxEros: HxEros Report
Special
23m
Hagane Orchestra
TV
4m
Moekan The Animation
OVA
30m
Negadon: The Monster from Mars
Movie
26m
Bikini Warriors OVA
OVA
4m
Battle Royal High School
OVA
59m
