The name "Immortal Tatsu" strikes fear into the hearts of both hardened police officers and vicious criminals, as he is the legendary yakuza who single-handedly defeated a rival gang with a lead pipe. However, after his sudden disappearance, he reappears with a new profession - that of a house husband. Equipped with an apron, he has renounced violence and is trying to live an honest life.
But being a house husband proves to be a challenge for Tatsu, as he struggles to adapt to mundane household tasks such as navigating supermarket sales and cooking failures. Despite his peaceful life, he is plagued by misunderstandings. "Gokushufudou" follows the comically serious ex-yakuza's day-to-day life as he adapts to his new role as a stay-at-home husband, leaving his dangerous past behind.