Hiroto was an orphan boy who lived in an orphanage. When an affectionate man appeared who kept them company brought them gifts and loved them, Hiroto and the others orphan children began to love him like a father, especially Hiroto, who was his favorite. That mysterious man was actually Seijirou Kira, owner of the Ohisama En orphanage. Hiroto was the captain of Genesis, the supreme team of Aliea Academy. Later on he joins Inazuma Japan in FFI, where he becomes the third captain and a main piece of that team. He appears in Inazuma Eleven Go as the chairman of Kira Zaibatsu/Schiller Group and he is now called Hiroto Kira (吉良 ヒロト), Xavier Schiller in the dubs. Because the real Hiroto is alive, in Inazuma Eleven Ares he is called Tatsuya Kiyama (基山 タツヤ), Hunter Foster in the international dubs. His hissatsu in the original timeline are: [Season Two] Ryuusei Blade, Supernova (with Wheeze and Ulvida) and Space Penguins (with Wheeze and Ulvida) [Season Three] Ryuusei Blade V2, Grand Fire (with Toramaru and Gouenji), Grand Fire G2 (with Toramaru and Gouenji), The Birth (with Fubuki), Tenkuu Otoshi, Big Bang (with Fubuki and Kidou) and Last Death Zone (with Fubuki and Someoka). His hissatsu in Ares timeline are: Ryuusei Blade, Cosmic Blaster (with Hiroto Kira) and KAMAKURA D (with Mizukamiya and Nishikage).