After being summoned to serve Takeru as his vassals, Ryunosuke, Mako, Chiaki, and Kotoha begin their transition into Shinkengers. However, while practicing their kanji to perfect their Modikara abilities, Chiaki shirks it off and has Ryunosuke and Mako start to question Takeru until Kotoha is nowhere to be found, finding her practice as reveals her reasons for becoming a vassal. When the Ayakashi Ootsumuji appears, the vassals deal with the Nanashi while Shinken Red fights Ootsumuji. But when the vassals took the blow meant for him, Shinken Red seem cold to Kotoha being heavily wounded as he runs after the Ayakashi. But when they learn their master was cold in order to save a little girl the monster was heading towards, the vassals fully realize their mission and join their master in executing the deathblow. But when Ootsumuji revives into a giant, the Shinkengers combine their Origami to form Shinkenoh, after the vassals' own Oden combination attempt under Ryunosuke did not work. After dealing with the ?nanashi summoned to hinder it, Shinkenoh slays Ootsumuji. After Ryunosuke apologizes for forsaking him and his combination blunder, he disciplines himself as Takeru and the other vassals leave him behind.[3]