With aid from Onikura Yukinojyo, a warrior monk who traveled through time, Sensui and the others manage to repel the powerful Gibier, Meteora, and then stop in at a nearby shopping mall. There Sensui and Kenroku's past is revealed, as well as how they first met one another. Yet as their group sets out for the new destination, a new peril approaches!

A lone woman appears when Kathleen is in danger. Is she an ally or an enemy?! Will they be able to escape from the desperate situation within the tunnel? Sensui's past is finally revealed, along with his history with his Master and the origin of his dual wielding style.