​In the neon-lit underworld of 1988 Tokyo, two rising Yakuza brothers, Ken and Hiro, go rogue to protect a fiercely independent bar manager after she witnesses a high-level execution. As they flee from city politicians and rival mobsters, the intense pressure forces the brothers' hidden rivalries and unspoken love triangle out into the open. With the syndicate closing in, their bond is pushed to the breaking point by a dark ultimatum that threatens to destroy them from within.