In an alternate Japan, territorial street gangs form opposing factions collectively known as the Tokyo Tribes. Merra, leader of the Wu-Ronz tribe of Bukuro joins forces with heavy hitting sadistic gangster Buppa of Buppa Town. With Buppa's support, Merra aims to initiate a gang war between the Wu-Ronz and the Musashino Saru, and in a confrontation between the two attempts to kill popular member of the Musashino Saru - Kai. By mistake, Merra instead kills Kai's friend Tera (a Musashino Saru member beloved by members of all Tribes since before their formation). This leads to the joining of forces between all of the Tokyo Tribes in an all out war against Merra and Buppa's forces. Written by Antonio Torresan

The film stars Oguri Shun as an experienced mountain climber and rescue team volunteer named Shimazaki Sanpo. Sanpo loves the mountains and wants as many people as possible to experience everything they have to offer—so much so that he never holds a grudge against anyone for causing an accident due to their own negligence. Even if a fellow rescuer dies, he's the kind of man who can look toward the corpse and say "You did your best." One spring, newcomer Shiina Kumi (Nagasawa Masami) is assigned to the Nagano prefecture mountain rescue team where she experiences growth thanks to Sanpo's guidance and the seemingly harsh training methods of the team's captain, Noda (Sasaki Kuranosuke). However, she becomes depressed when she's unable to translate her skills to a real-life situation. As her confidence wanes, multiple accidents occur simultaneously due to a mountain blizzard, forcing the entire team into action.

Japan in the 19th century. A poetic love story far beyond any other samurai movie stereotype...