Batako-san works alongside Uncle Jam in his bakery, where she crafts and mends the flight-enabling capes for Anpanman and fellow heroes. Her name, meaning "Butter Girl," nods to her baking roots. Renowned for her tireless dedication, she balances meticulous cape upkeep with assisting in daily bakery tasks, though her occasional forgetfulness adds a relatable flaw to her steadfast nature.

Damaged capes risk grounding the heroes, making her repairs critical to their mission success. Beyond stitching fabric, she ensures each cape retains its magical properties, safeguarding the team’s ability to protect others. Her hands-on role in both the bakery and cape workshop underscores her versatility.

Though her personal history remains unexplored in documented media, her unwavering support for Uncle Jam and the heroes cements her as a quiet pillar of their collective efforts. Her interactions, centered on collaboration and problem-solving, highlight resilience and dependability, even when memory slips require patience from allies.