Note: Most of the story arcs have been officially named, while others are names given by the community for better organization. So far the only arcs that haven't been named are Intro Arc and Tag Arc.
Shiki is an oni whose father has just died after being attacked by a momotaro, with a new goal and the help of Mudano, Shiki will attend the Rasetsu Academy to learn to use his powers and achieve his goal.
After a distress call from the Kyoto branch, Mudano's group heads to Kyoto to assist the local support unit as a momotaro is determined to kill all the oni in the city.
Mudano's group travels to Nerima for a field trip, however Shiki decides to get away from the group and ends up meeting Mikado who becomes his friend, unbeknownst to him, Mikado is a momotaro whose boss is looking for Shiki.
A group of oni called the Kikoku Unit plans to raid the Kegon Falls Facility, Yaoroshi who is unhappy with the academy's philosophy decides to accompany them forcing Shiki and the others to follow them in order to bring Yaoroshi back.
Koenji is attacked which makes Mudano go to the place to support however Yusurube reveals that he has a relative living there so he asks Mudano to let them accompany him.
Yusurube is accused of treason so to prove his innocence, Shiki, Jin and Mudano travel to Matsumoto where there is an oni capable of reading minds, however to everyone's surprise a Child of Kishin is found there.
After realizing that the oni are not as bad as they seem, Mikado finds himself thinking about how to avoid war between both sides until in an unexpected turn he meets a child oni.
The oni and momotaro have been revealed to the general public so an oni killing law has been created causing Toyosu to plunge into chaos so Mudano's group heads to Toyosu to evacuate the trapped oni.
