"Kazoku de Ikō yo!" centers on the daily lives and struggles of the Tachibana family, a close-knit yet unconventional household navigating the complexities of modern life. The patriarch, Shōzō Tachibana, is a hardworking salaryman who often finds himself torn between his demanding job and his responsibilities at home. His wife, Yōko, is a dedicated homemaker who balances managing the household with her own personal aspirations, occasionally clashing with societal expectations of a traditional wife and mother. Together, they raise their two children: the studious and responsible eldest daughter, Aoi, and the mischievous yet endearing younger son, Haruto.

The narrative explores the family’s interactions with each other and their extended relatives, highlighting both the joys and challenges of familial bonds. A recurring theme is the tension between individual desires and collective family obligations. Shōzō’s long hours at work strain his relationship with his children, while Yōko grapples with her identity beyond her role as a mother. Aoi, a high school student, faces academic pressure and the challenges of adolescence, often feeling overshadowed by her younger brother’s antics. Haruto, on the other hand, brings humor and chaos to the household with his boundless energy and curiosity, often unintentionally causing trouble.

The series also delves into the dynamics of the extended family, including Shōzō’s elderly parents, who occasionally move in with the Tachibanas, adding generational conflicts and cultural expectations to the mix. The grandparents’ traditional views often clash with the modern values of the younger family members, creating both comedic and poignant moments. Through these interactions, the manga portrays the evolving nature of family life in contemporary Japan, addressing issues such as work-life balance, generational gaps, and the pressures of societal norms.

Episodic in structure, "Kazoku de Ikō yo!" balances humor and heartfelt moments, capturing the everyday struggles and triumphs of the Tachibana family. The characters’ growth is gradual, with each member learning to navigate their individual challenges while strengthening their connections as a family. The manga’s realistic portrayal of family life resonates with readers, offering a relatable and engaging depiction of the complexities of modern familial relationships.