|First Appearance||Chapter 12|
|Team||The Evil Dôji Branch|
In the 1940s, he was sleazy landowner that profits from the aftermath of World War II and has a business relationship with Hibari's incarnation, who was mafia boss.
Kaizo is a very overweight man with light, swept back hair and a mustache. He wears a lapelled light-colored suit and a polka-dotted tie, that features a jeweled pin, and a collection of extravagant jewelry, fitting his sin. In all of his appearances, he usually is seen smoking a cigar.
Kaizo possesses attributes of a stereotypical corrupted business man, being greedy for money and power. While friendly to his allies, he shown to be quite ruthless to his enemies and would do anything for power, such ordering Avaro to kill off Hibari Oume, who his daughter in The 21st Century.
Kaizo is the master of Avaro through out the 21st century, and they seems to get along very well, to the point where they even have similar mannerisms.
|The Good Dôji Club:||Yamato Agari · Shin Ekoda · Yoichi Oizumi · Koun Shakujii · Musashi Murayama · Hiroshi Kumegawa · Machi Shina · Makoto Sayama · Akitsu Otake · Hibari Oume · Kiyose Matsumoto|
|Allies:||Darumada Masami · Hyoe Tokorozawa|
|The Evil Dôji Branch:||K · Akira Hidaka · Kaizo Oume · Fusataro Fussa · Sumako Miyoshi · Mizho · Rune Kodaira · Hana Koganei · Tomomitsu Iruma|
|Unspecified/Neutral:||Roger Dunstan · Miyu Murayama · Taiji Kokubun · Fushimi Agari · Yuu Ekoda · Shinsaku Ekoda · Saishinsaku Ekoda · K's Grandmother|