Chiaki oversleeps and is brought out to training by the Kuroko. Takeru call him out, telling Chiaki that he is lacking in several aspects of being a samurai, and that he needs to get stronger.
Chiaki leaves the mansion to hang out with his high school friends. Doukoku sends Rokuroneri to attack the human world, and Chiaki recklessly attempts to fight him on his own. Chiaki is beaten, and his friends get hurt in the process. The other Shinkengers come to Chiaki's aid and hold off the Ayakashi for just enough time to make a quick retreat.
Takeru challenges Chiaki to find a way to beat the Ayakashi, otherwise he will take Chiaki's ShodouPhone from him.
Rokuroneri returns to the Sanzu River to get some more water, while both Chiaki and Takeru separately train to defeat him.
The next day, Rokuroneri and Nanashi Renjyuu rampage through the city, and are met by the Shinkengers, minus Chiaki.
Chiaki shows up and declares to Takeru that he's going to fight alone from now on.
Takeru-tachi take care of the Nanashi Renjyuu while Chiaki implements his plan on Rokuroneri. Chiaki is successful, but only as a result of Takeru blocking an attack meant for Chiaki.
Chiaki attempts to take on Rokuroneri using only Kuma Origami, but Takeru and the others arrive and form Shinken-Oh, much to Chiaki's dismay. Takeru is able to dodge Rokuroneri's attack and the Shinkengers defeat Rokuroneri.
Chiaki, realizing he can't do everything by himself, asks Takeru to let him fight with him again.
