Yamamura (Kenta Kawasaki), who has been an otaku since his school days, tries to hide his hobbies even during his time with youth gangs. One day, he falls in love at first sight with a transfer student, Akiko (Kazusa Okuyama), but it ends in heartbreak. Time passes, and Yamamura, Joji (Takashi Kitadai), and Ishizawa (Hiroto Honda) head to the Yamazaki family's regular meeting.
In this sequel to Police and Prosecutor, Nakaido, the passionate gymnastic-teacher-turned-police-detective, is still eager to arrest criminals by all means and be appreciated by victims. He plunges into cases without any care for compliance issues.
Namba Hiryu was captured by Kisaragi-kai, a group of villainous sparrows who are opening dark gambling venues at hot spring inns nationwide! Mashiro, a daughter who learned mahjong from Hiryu when she was young, challenges the Kisaragikai with Chiko, who was the leader of Hiryu, in order to protect the public bath at her parents' house! Mashiro and his friends struggle with the sneaky mahjong of the Kisaragikai, but when they enter the hot springs and their bodies get hot, the mahjong becomes stronger! ?? Can Mashiro and Chiko rescue Hiryu without losing the peeping of Ishiwa's toothed turtle and the strip mahjong confrontation with Ito's black panther? ??
A Gangler remnant, Ganima, captures Tyramigo and the other Kishiryu inside his safe! To save them, the Ryusoulgers engage Ganima in battle, however he starts to use the Kishiryu's own powers against them! Banba and Towa chase after Ganima and come into contact with Keiichiro from the Global Police! Meanwhile, Koh comes into contact with Kairi from the phantom thieves! In order to save the Kishiryu, these three Super Sentai teams will unite! This winter, knights, phantom thieves, and police officers will mix and match to create an amazing battle!
Kazusa Okuyama is a Japanese model from Hachinohe, Aomori. She is a Miyagi University of Education graduate.