As The Black Moon Rises, Trouble Always Follows. Jirou Kuronuma's life has always been a big pile of garbage, and it seems like it's going to continue that way. What he thought was his lucky night getting a date with a beautiful enchantress ends with Jirou eviscerated while staring at the jaws of a demonic seductress! Knocking at death's door, he's saved by Levi, a twin-tailed terror with a real sadistic streak, and wakes up in a foreign land far from his home. Indebted to his savior, he's now Levi's little servant, assisting her in breaking the spell that has limited her black magic skills. Jirou better starts kneeling to his new master because she doesn’t want a slacker slave that's stale in the sack.

Source: FAKKU!