Chimo Yakusa runs the Hoboro okonomiyaki store in Takehara, earning her the affectionate nickname Hoboro-san. She pours considerable passion and dedication into preparing okonomiyaki, reflecting her deep commitment to her culinary craft.

Kazutarou Dougou, Fuu Sawatari's homeroom teacher, becomes romantically interested in Chimo. His attempts to win her favor include recruiting students to craft bamboo creations, aiming to capture her attention and approval. Their relationship develops over time, and they eventually marry.