Kenji is resented by many due to the fact he is the current Jinchūriki of the Two-Tails, having been chosen at the age of six following the Fourth Great Shinobi World War; though some do respect his growing abilities as a Shinobi and his desire to help others. He has been good friends with his fellow team-mate Gray Kazuki, and Sensei Shin Takahiro since he was a child, and forms a three-man cell with those two dubbed Team Takahiro (チーム隆弘, Chīmu Takahiro). He once formed a Genin-team with both Gray and Harumi Misuteri who both boys thought dead in a past mission.