"Immortal Tatsu," the legendary yakuza who single-handedly defeated a rival gang with a lead pipe, is a name known to strike fear in both hardened police officers and vicious criminals. Shortly after his sudden disappearance, he reappears with a slight change in profession. Now wearing an apron, Tatsu has abandoned violence and is attempting to make an honest living as a house husband. While adjusting to mundane household chores, Tatsu discovers that being a house husband presents its own challenges, ranging from the battlefield of supermarket sales to failures in the kitchen. Despite living peacefully, misunderstandings seem to follow him everywhere. Gokushufudou follows the daily life of the comically serious ex-yakuza as he leaves behind his dangerous previous life to become a stay-at-home husband.