Chrono accepts a fight from Aichi, who returned from overseas. Supported by Kamui and Shin, who know both of the fighters very well, Aichi is determined to ignite Chrono`s fighting spirit with his strong imagination and bonds with his units.

Visiting "Nome Tatsunagi", head of the Tatsunagi Foundation. Nome, who watches over the fate of Cray and Earth, reveals the truth behind the events that are happening. Who exactly are the "Diffriders", who hide their right hand…?