Savage Chivalry

When George Tanner does business with high-ranking Yakuza Tono, Tono kidnaps his daughter, and George summons his old friend, private eye Harry Kilmer, to Japan to investigate.

Mikami, an ex-yakuza of middle age with most of his life in prison, gets released after serving 13 years of sentence for murder. Hoping to find his long lost mother, from whom he was separated as a child, he applies for a TV show and meets a young TV director Tsunoda. Meanwhile, he struggles to get a proper job and fit into society. His impulsive, adamant nature and ingrained beliefs cause friction in his relationship with Tsunoda and those who want to help him.

10 years has passed since the confrontation between Kira and L. Again, Shinigami sends death notes to the ground and due to this, the world soon falls into chaos. Tsukuru is a member of the Death Note special task force team with 6 other investigators including Matsuda who experienced the Kira case of 10 years ago. Mass murders caused by the death note takes place on Wall Street in the U.S., Shibuya in Japan and other places. World famous private investigator Ryuzaki, who is the rightful successor of L, also investigates the mass murders. They discover that 6 death notes exists in the world. A computer virus called Kira spreads in the world. A message in the Kira virus says to turn in 6 death notes. A person who has 6 death notes overwhelm the world. The confrontation begins between the person who wants Kira’s revival and the people who want to stop it.

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 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 Kai of the Musashino Saru. The inadvertent murder of Kai's friend Tera (a Musashino Saru member beloved by all Tribes since before their formation) leads to the joining of forces between all of the Tribes in an all-out war against Merra and Buppa.