Yusuke Saotome

Yusuke Saotome a.k.a. the Speed Demon is the best friend of Ginta Hanabishi, and the deuteragonist of the manga/anime series, Demon Kings. Yusuke attends the same school as Ginta, where he originally was a member of a gang. Yusuke is introduced as a cold and bitter individual who has a severe lack of trust in people due to his father, Kaito Saotome, being killed by demons. After his loss to Ginta, Yusuke decided to completely start over and change his life around, valuing Ginta as his closest companion. It is Ginta's complete trust in him why Yusuke begins to place his trust in other people. Yusuke decides to tag along with Ginta to help complete the demon's prophecy for Ginta's sake. He does so to prepare for his bright future as a scholar to impress his mother, Mino Saotome, his younger brother, Shido Saotome, and his deceased father. Yusuke is the only full-blooded normal human of the five main protagonists, as Ginta is later on revealed to be half-Mazoku, Souketsu Ishida is already a half-human/half-Chimera, and Naraku Minamino is an enlightened breed of humans inherited from the beings of the Astral Plane.