BOY entered the system around the same time as Masato Yoshino. The two are contemporaries and remain close friends to this day. After debuting with Dragon Gate as Shachihoko Machine, he also began competing as Shisa BOY. He continued to do both characters for several years, although it eventually became obvious it was him under both masks. During a November 2011 Triangle Gate match, his Shachihoko mask was removed and he was sent to the backstage area. He returned with the Shisa BOY mask. From that time forward, he would occasionally appear with the characters mixed up. He formally fused them in the summer of 2012, becoming Shachihoko BOY. Shisa BOY & Shachihoko Machine appear to be sealed for the time being. His hard work improving his physical conditioning paid off in late 2012 when he was promoted from his Window spot to WORLD-1 International.