"The Way of the Househusband" centers on Tatsu, a former legendary yakuza boss known as "The Immortal Dragon," who retires from the criminal underworld to become a full-time homemaker. Tatsu’s transition from a life of violence to domesticity is marked by his unwavering dedication to household tasks, which he approaches with the same intensity and precision he once applied to his yakuza duties. His daily life revolves around cooking, cleaning, shopping, and supporting his wife, Miku, a hardworking career woman who appreciates his efforts but is often bemused by his over-the-top methods.

The series is structured as a slice-of-life comedy, with each episode or chapter focusing on Tatsu’s interactions with his neighbors, local shopkeepers, and occasional encounters with figures from his past. Despite his intimidating appearance and mannerisms, Tatsu’s genuine kindness and commitment to his new role often lead to humorous misunderstandings. His former yakuza associates, including his loyal underling Masa, occasionally visit, only to find themselves roped into mundane activities like bargain hunting or attending cooking classes. These interactions highlight the stark contrast between Tatsu’s fearsome reputation and his current domestic life.

Miku, Tatsu’s wife, serves as a grounding force in the narrative. Her calm and supportive demeanor balances Tatsu’s eccentricities, and their relationship is portrayed as one of mutual respect and affection. The series also introduces recurring side characters, such as the nosy but well-meaning neighbor Torajiro and the local shopkeepers who are both intimidated and charmed by Tatsu’s unique approach to everyday tasks.

The humor in "The Way of the Househusband" stems from the juxtaposition of Tatsu’s yakuza past with his present domesticity. His meticulous attention to detail, combined with his intimidating aura, often leads to absurd situations, such as treating a trip to the supermarket like a high-stakes mission or turning a simple household chore into a dramatic showdown. Despite the comedic tone, the series occasionally touches on themes of redemption, personal growth, and the value of finding purpose in unexpected places. Tatsu’s journey from a life of crime to one of domestic fulfillment is both entertaining and heartwarming, offering a fresh take on the slice-of-life genre.