Takuma Onizaki

Takuma Onizaki (鬼崎 拓磨; Onizaki Takuma) is the first guardian Tamaki meets and is also her classmate. He has powerful strength but is quite slow. It is first thought that he is the descendant of an Oni (demon), whose power is very hard to control, especially when near the sealed magical sword Onikirimaru. In the second season of the anime, it is revealed that he is, in fact, the reincarnation of the Underworld God, and the First Guardian of the original Tamayori Princess - who sacrificed herself to seal the Onikirimaru and save him from its overwhelming powers.