Kyoko rides her beloved bicycle through town every day, gliding cheerfully through the streets. Her warm presence has made her a popular figure among locals, admired for her friendly demeanor. However, not everyone approves of her. Her son suffers from ridicule at school, mocked as the "bicycle mom's kid," and deep down resents his mother's actions. Gently watching over her troubled son and comforting him with warmth, Kyoko makes a firm decision—to ride her bicycle to the home of the classmate who started the bullying.