Mika Kukuri is a high school student sporting blonde hair arranged in a ponytail with a small front braid. Her red eyes stand out behind round orange glasses, and she typically wears her school uniform—a green skirt paired with a light yellow cardigan layered over a blouse, completed by a prominent orange bow.

Cheerful, extroverted, and highly energetic, Mika exhibits immediate enthusiasm for pottery. She proactively invites Himeno Toyokawa to join the pottery club shortly after their first encounter. Mika maintains an optimistic outlook, often prioritizing social connections and demonstrating genuine care for her friends. She shares a notably close relationship with Touko Aoki. While generally bubbly and occasionally crossing social boundaries—such as abrupt marriage proposals—she possesses authentic knowledge of pottery techniques.

Her given name "Mika" translates to "three" and "flower," while her surname "Kukuri" combines the characters for "long time" and "pear."