Shisa debuted at the end of 2001, as the first pupil of the recently retired Yoshiyuki Saito. His level of skill from the first day of his career lead everyone to deduce that he was indeed Saito himself. Of course, it was denied at every turn. Shisa remained away from the center of the unit wars until 2005, when he became a part of PosHEARTS. At the end of PSH, he once again moved to the backlines, choosing to work as a trainer for the NEX class rookies. He continues in this role, but every now and then jumps back to the frontlines (such as with JUNCTION THREE in 2011). He is a masterful mat technician, and his Yoshitonic finisher has almost a 100% success rate.