SEINEN
Anuki is a boy caught in a war between two countries. When he is small he is abandoned by his father so a princess could be saved. This event triggered amnesia so he doesn't remember his childhood before this event.When he grows up he joins a flight mercenary unit to be trained as a pilot so he can help in the war, there he becomes the ace pilot.
Ryota plays it cool around all of his classmates, especially when it comes to girls. But he's always the one on the spot in a perverted situation. In some of these many random anecdotes about the lives of fifth graders you'll find: peeping at collarbones, eating chalk, accidental skirt flipping, missing bloomers (you know, those girls' gym shorts things), and many others. Who says grade school can't have a high-school-type love story?
28 years earlier, there was a plane crash in the mountains of Gifu Prefecture. The barrier that the Kobo Daishi, Kukai had created to seal away the demons was destroyed in crimson flames... Present day, Oniwakamaru, King of the Yokai, appears inside the body of pure and innocent Tachibana Hitori!!