Tarou Tsubaki lives solo in the city until he coincidentally crosses paths with his former childhood friend, Hiraiwa, who went through a divorce and now resides with his young daughter, Fumio. This unforeseen reunion triggers a chain of events that leads to significant transformations in Tsubaki's life. Tsubaki-kun seamlessly integrates into Hiraiwa's family dynamics, fostering impactful and diverse relationships. Tsubaki's Diary depicts poignant and compassionate glimpses of the bonds that blossom in ordinary life.
