Chisato reluctantly went to DA Headquarters for a health checkup and physical fitness test. When Takina heard, she decided to tag along to make a direct request for reinstatement at DA. With Chisato, Takina negotiates, but their commander will hear none of it. Moreover, her ex-partner Fuki is teaming up with a new companion.

All is settled with the incident at Enkuboku—or so it seems until Majima, who should have been defeated at the old Radio Tower, reappears before Chisato. Majima planted a bomb in the Enkuboku, betting on the explosion when he challenges Chisato to a one-on-one fight. As Chisato's own time limit approaches, the final battle begins!