A bravado period action film set at the end of Japan's feudal era in which a group of unemployed samurai are enlisted to bring down a sadistic lord and prevent him from ascending to the throne and plunging the country into a war-torn future.

Tobio Masubuchi and his friends are ordinary high school students. Due to an incident, their peaceful days are about to change. Tobio’s friends are beaten by students from another high school in their neighborhood. Tobio and his friends scheme to get back the students from the other school. The day they are to carry out their plan, they see the other high school engulfed in flames. Tobio and his friends become suspects.

Former police officer Asahina is a light-hearted young man who works for a security company. One day, he is appointed as a bodyguard and teams up with middle-aged Ishimaru. Ishimaru is a former company president who was labeled as coward due to his cautious personality. Despite having differences, they work together to protect their clients and come face-to-face with their past.

Chiku is a devastated and dangerous town with 5 gangs fighting fiercely. Mugen and the Amamiya Brothers clashed, leading to Mugen disbanding.

A town once dominated by Mugen has been split into 5 districts dominated by S.W.O.R.D., the 5 gangs: Sannoh Rengokai, White Rascals, Oya Kohkoh, Rude Boys and Daruma Ikka. Mugen's grip on the town ended after the legendary Amamiya Brothers refused to submit to their will. The 5 gangs fight for their pride and glory, but the mysterious Mighty Warriors appear.

Ordinary salaryman Hamasaki Mitsuo works for a company which installs vending machines. He complains about his marriage life while at the dentist office. Mitsuo isn't happy at all with his marriage with his wife, Hoshino Yuka, who has the complete opposite personality from him. He doesn't know if he loves Yuka or not. At this time, Mitsuo meets Kono Akari, his ex-girlfriend from his university days, who is now married to Uehara Ryo.

Mikoto Misumi is a pathologist at UDI (Unnatural Death Investigation) Lab. She can't stand neglecting unnatural deaths and believes there must be a truth behind the deaths. Team members that work with her are autopsy doctor Kai Nakado, recorder Rokuro Kube, clinical test technologist Yuko Shoji and UDI director Yasuo Kamikura.

They work on unnatural death cases and try to reveal the truth behind the deaths.

On the night before ‘Black Friday,’ which is the one of the busiest commerce days, a cardboard box, that is delivered from the world's largest shopping site, explodes. Soon after, a series of mysterious explosion cases occurs. The entire nation becomes terrorized by the shocking events. Funado Erena has just began to work as the center director for a large distribution warehouse that covers three-quarters of the Kanto area. Erena must gain control over this unprecedented situation with team manager Nashimoto Ko.

Ryōsuke Yoshii, an ordinary reseller, carelessly earns grudges by people and becomes entangled in a life-threatening struggle.