his Tachibana identity, Tsubasa found the people that Emoto kept in suspended animation, including Sarina Sonoda. Tsubasa mimicked her appearance and took on a repressed split personality that she had developed based on her childhood friend , who was killed in an accident following an argument they had. Following Emoto and Mitsuaki Gamou's deaths, Fourze transports the people on the M-BUS back to Earth and unknowingly brings Tsubasa with him. Upon arriving, Tsubasa utilizes the "memory of the Kamen Riders" and technology based on the Fourze and Meteor Drivers to create his own Rider system and become , naming himself after a Japanese experimental rocket of the same name that Sonoda dreamed of riding. Tsubasa also turns Hiroki Makise back into the Pyxis Zodiarts and creates the Carina, Puppis, and Vela Zodiarts from problem AGHS students to gather energy from their despair before fusing the four Zodiarts into the Argo Zodiarts. After absorbing Sonoda and Yuki Jojima's dreams, Tsubasa transforms into and overwhelms Fourze until the latter brings the alien to space and defeats him, turning Tsubasa back into his SOLU form. Before returning to space, Tsubasa expresses a desire to befriend Fourze upon his return. Notes References Fourze characters Kamen Rider Fourze Kamen Rider Fourze