Shinjiro is Akihiko's best friend and one of the older members of S.E.E.S. that left the group early after an accident, but later rejoined the fight after finding out about Ken Amada's joining. Shinji is rather reserved and tough, only really speeking when telling someone to leave him alone, or to butt heads with Akihiko in a rather brotherly manner. Shinji's voice should be something kinda tough sounding with a little bit of gravel to match his personality. An impression of his original voice is fine as well.