Tokyo Naval Science Museum.
Many people thought that the Professor has been killed.
The two gangs were later united by Sano Shinichiro.
I'm gonna kill everyone in Toman myself.
The 1st Generation of Black Dragon, led by Sano Shinichiro and consisting of Akashi Takeomi, Imaushi Wakasa Waka , and Arashi Keizo Benkei , was the most revered and famous gang for a long time.
Izana was later succeeded by Madarame Shion, who lost to Mikey and the then newly-formed Tokyo Manji Gang.