S-62 Generation

The S-62 Generation (S-62 世代,), or the Vicious Generation, was an exclusive group of six teenagers born in the year 1987 known for their acts of violence. It was led by Izana Kurokawa. Years after the members' parting, they gathered once more to establish Tenjiku.

Background
In the year 2001 at a juvenile detention center, Izana Kurokawa recruited formidable fighters his age and established a small exclusive group called the S-62 Generation. With him as the reigning leader, they involved themselves with various heinous crimes, such as robbery, assault, and drug trafficking, and formed gangs of their own to strengthen their connections and expand their means of acquiring assets. Together, they also formed Tenjiku and were ultimately feared as the "Vicious Generation."

After Tenjiku's defeat in the battle against the Tokyo Manji Gang that resulted in Izana's death and S-62's arrest, the group was disbanded. However, the four remaining living members of the group eventually joined Rokuhara Tandai once they were let free from the detention center.

Structure
The S-62 Generation strictly consisted of six members who were born in 1987, namely Izana Kurokawa, Yasuhiro Muto, Kanji Mochizuki, Ran and Rindo Haitani, and Shion Madarame. Izana led the group as the initiator of the alliance.