Baketeriya (化けてりや) is a manga written and illustrated by Yoshiyuki Takahashi. It was serialized in Big Gangan from April 25 2011 to August 24 2013.
Every good thing in Naoya Kamitani's life comes with a catch: He managed to get into a prestigious university missing the fine print that he'll be sacrificed to appease dark beings. When he arrives at the school, he immediately runs into a man with all the answers who never tells him the whole truth. A rather pretty girl wants him all to herself as her dinner. He gains the favor of the richest, most influential girl in school and she's a total sadist. He even finds out he has a daughter who sets fire to everything when she gets excited. Will Naoya come out on top? It's a long road ahead of him.