Servamp

Servamp (SERVAMP -サーヴァンプ-, Sāvanpu) is a Japanese manga series by Strike Tanaka, serialized in Media Factory's shōjo manga magazine Monthly Comic Gene since 2011. It has been collected into eleven tankōbon volumes. The series is licensed in North America by Seven Seas Entertainment. A television anime adaptation began airing on July 5, 2016 and concluded on September 20, 2016 with 12 episodes.

Plot
The story revolves around a 16-years old boy (15 at the beginning of the story) called Mahiru Shirota who likes simple and dislikes difficult things. One day he picks up a stray, black cat he finds in the middle of the road and gives it the name Kuro. From this moment on a contract between the servamp Sleepy Ash and Mahiru is formed and Mahiru is being pulled into the servamp war.

"Servamps", deducing from the two words "servant" and "vampire", are vampires that are able to form a contract with a human, the so called "Eve" and serve them in exchange for drinking their blood.