Kuro Zakuro #3, Shonen Sunday, Yoshinori Natsume

Kuro Zakuro Volume 3 - A Shonen Sunday manga series by Yoshinori Natsume, the creator of Togari and Batman: Death Mask.

Mikito Sakurai is tired of being a punching bag for delinquents on campus, but his life changes when he swallows a mysterious orb and meets Zakuro, a strange girl who promises to unlock his hidden desires. When Mikito awakens, he discovers he's become stronger—and that everyone has a little monster inside them. As Zakuro spreads ogre seeds and kills monsters across the city, Mikito must battle the powerful Susuki and team up with a social hunter named Gogyo to stop her rampage and unleash his own awesome ogre powers.