Koji Shindo is a character appeared in the first two Yakuza games, serving as a lieutenant (later patriarch) of the Nishikiyama Family.
He serves as lieutenant of Nishikiyama Family in the first game, and is seen leading an ambush against Kiryu at Serena .
A year after the first game, Shindo becomes the family's second patriarch following Nishikiyama's death. This event caused him to hold a grudge against Kiryu, which resulted in him disobeying Yayoi Dojima's orders to aid him against Go-Ryu clan and the Jingweon Mafia. He has a crush on Yayoi and harbors a great ambition to be the next chairman of Tojo Clan following Terada's supposed death. These desires lead him into selling out the Tojo Clan to the Sengoku Family, causing the family to be expelled from Tojo Clan.
After Shindo's amibitions and betrayal come to light, Kiryu fights him in a brawl through Tojo Clan Headquarters. After being supposedly defeated, he tries to sneak-attack Kiryu from behind in the meeting room, but is soundly beaten after a second fight. When Yayoi expels him from the Tojo Clan, Shindo reaches for a gun, but before he can fire, Daigo Dojima shoots him first and he dies.
In Yakuza and Yakuza Kiwami, Shindo has a slicked-back hazel hair and wears a pale gray suit over white shirt, with matching pale gray dress pants and black dress shoes. In Yakuza 2 and Yakuza Kiwami 2, his attire is slightly altered: his suit and shirt color combination is now white/black, similar to his former patriarch's attire, and his haircut is changed into a classic slicked-back undercut.
Shindo's blind ambition took the most out of him, to a point where he's willing to sell the Tojo Clan out to Omi Alliance's Sengoku Family, in an effort to become the Clan's next chairman. Despite this, the first game (and its remake) shows that Shindo once held a degree of respect to Kiryu, calling him by his former position as a lieutenant of Dojima Family.
Shindo fights with a katana in an unrefined brutal style with a clear lack of training.