Keiji Yagi

Tentang

Yagi Keiji is a rep player for Ryuuzaki. Upon first seeing him play, he acknowledges Akagi's talents but believes he can defeat Akagi due to his lack of familiarity with the rules.

The first professional mahjong player that Akagi plays and defeats. He uses techniques to cheat during the game but loses in front of Akagi's ability.
(Source: Wikia)