Nura: Rise of the Yokai Clan

Nurarihyon no Mago (ぬらりひょんの孫, Nurarihyon's Grandchild) is a Japanese manga written and illustrated by Hiroshi Shiibashi that appeared in Shueisha's Weekly Shōnen Jump magazine since March 2008.

Story
Nurarihyon no Mago follows the adventures of Rikuo Nura, a 12-year-old boy who is part human and a quarter yōkai. He lives in a house full of spirits along with his yōkai grandfather Nurarihyon. Despite his grandfather's wish to succeed him as master of a yōkai yakuza clan, he tries to escape his fate of acting like a yōkai by doing good deeds. He eventually comes to terms with his yōkai blood and decides to take up the position of Young Head of the Nura House. Multiple factions aim to stop him or overtake his position, and he must gather friends and allies, a new Hyakki Yakō under his banner of Osore, or Fear.