Tetsuya's mentor. He was born in Chiba. He is the most experienced mahjong player in Shinjuku, who taught Tetsuya many secret techniques and trained him through actual games.

In the year 1947, the people of Shinjuku are down on their luck. With little money to buy food or necessities, some resort to gambling in order to survive. Traveling Tetsuya chooses to spend his time at Mahjong parlors where he is wiping the floor clean with his adversaries. However, when Tetsuya meets the intensely skilled Boushu-san, he realizes that his skills are still lacking.
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(Source: Anime News Network)

__Hobbies:__ Jazz & Tap dancing
__Nickname:__ 周ちゃん

Chikao Ootsuka was a Japanese actor, voice actor and narrator, with a career spanning 67 years.
Ootsuka died from ischemic heart failure at the age of 85 on January 15, 2015.

Father of [Akio Ootsuka](https://anilist.co/staff/95146/Akio-Ootsuka).

[Profile (aoni)](https://www.aoni.co.jp/search/ohtsuka-chikao.html) | [Wiki (en)](https://en.wikipedia.org/wiki/Chikao_Ohtsuka) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E5%A4%A7%E5%A1%9A%E5%91%A8%E5%A4%AB)

In the year 1947, the people of Shinjuku are down on their luck. With little money to buy food or necessities, some resort to gambling in order to survive. Traveling Tetsuya chooses to spend his time at Mahjong parlors where he is wiping the floor clean with his adversaries. However, Tetsuya meets the intensely-skilled Boushu-san, this is when he realizes that his skills are still lacking.<br><br>
(Source: Anime News Network) 

Rokuro Kenzaki