Tsubakino, one of the four kings of Furin, has invited Sakura Haruka to the city of the night, and after accepting Tsubakino's invitation, Sakura runs into the protectors of their street, Ippon Ichiza. Now that Sakura and his friends have joined Ippon Ichiza's fight to protect a single girl, they are faced with an incredibly challenging fight as their enemies flood into the battle in waves. What awaits Sakura and his trusty allies in the thrilling battle on the night street...?