Hiroshi Mitarai

In the manga, Hiroshi Mitarai is nicknamed Dai-chan or 'Poops' (his last name can be translated as 'bathroom' in Japanese), but other than that he is one of the few characters who is almost always consistent storyline-wise in both the anime and the manga. Hiroshi doesn't know that Shia is a demon and Misha is an angel; but he attempts to exorcise Shia and clings to Misha. Despite this, he works hard to stand up to his family name, but always falls behind Ten-chan on tests. He misses his first choice for education because of exam grades, and consequently ends up at his Elementary's middle school, Misaki Middle.