Maou na Ore to Fushihime no Yubiwa

Maou na Ore to Fushihime no Yubiwa summary:

Kusumi Chiharu gets a message one day that he has been selected as a Monster Tamer, and he is prompted to select his first partner. He thinks little of the message until he receives a giant package the following day. He a.s.sumes it’s the p.o.r.n books he ordered, but the huge box ends up containing the unconscious body of a near-naked girl! She’s a ghoul named Zonmi, who intends to fight beside him as his partner.
However, it turns out that other hot girls at his mostly-male high school are also magical ent.i.ties, and Zonmi may not be the only one who wants to fight by his side!