Omoide Poroporo is the story of Taeko Okajima, a twenty-something woman currently working as an office lady for a large company in Tokyo. She decides to a take a break from her life in the big city, and takes a trip out to the countryside to visit her brother-in-law.

During her time there, she will have a completely different experience, becoming intimately familiar with the hard work of a farmer while spending time with friendly villagers and family members. This atmosphere will bring back nostalgic memories. She will begin to remember once more her life as a child: puppy love, the awkward stages of adolescence, and the challenges of dealing with boys and math class.

The time spent away from the everyday grind will make Taeko question the path she has chosen.