Hiden Manufacturing assists a discarded tennis coach-type HumaGear with his dream of becoming a professional player in the Grand Slam while also figuring out why he was discarded in the first place. Meanwhile, Gai reveals another of Isamu's secrets to Yua before ordering her to eliminate him.

Just as Aruto puts his trust in Jin, the rogue HumaGear steals Raiden's data from him in preparation for giving him a new body, causing the two to come to blows. Meanwhile, Isamu learns that Naki's chip was taken out of him, so Jin could restore their body as well.