Ep. 14: Yasuoka recruits Akagi to hunt a mahjong-playing serial killer targeting yakuza members.

After discovering the body of Hirayama Yukio, known as the fake Akagi, among victims drained of blood, Yasuoka confronts Oogi, the second-in-command of the Inada yakuza group. He proposes that the real Akagi is the only one capable of defeating a serial killer who eliminates opponents through mahjong matches. Oogi reveals that a similar player is gambling with the Kurata subgroup of Santou, which falls under the Inada organization. The duo locates Akagi, who has nearly died from a sword wound sustained during a game with yakuza members. Following his emergency hospitalization, Yasuoka and Oogi discuss the investigation with Akagi and formally request his participation in a match against the murderer to stop the killings.

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