Nana is a middle school student who has been best friends with Yuyu since elementary school. From a young age, she has never been able to refuse Yuyu’s wishes, often agreeing to match outfits and hairstyles even when she dislikes them. This has made her passive and conflict-avoidant, going along with things to maintain the friendship and avoid isolation.

Her primary motivation is the desire to change herself. She grows tired of always giving in and makes a bold decision to cut her long hair and declare that she will no longer follow Yuyu’s demands. This act sets the story in motion as she tries to assert her own identity and stop being a pushover.

As the protagonist, Nana’s role in the story is to navigate the turmoil that follows her rebellion. She faces social isolation and bullying from Yuyu and other classmates, but she gradually learns to stand up for herself. Her journey is about discovering what true friendship and empathy mean.

Key relationships include her childhood friend Yuyu, whose controlling behavior turns hostile when Nana refuses to comply. Nozomu Shioka, a classmate who is observant and supportive, becomes the first person Nana opens up to and later develops romantic feelings for. Himari Kono, a girl from another class who is also isolated, becomes Nana’s first genuine friend, and their bond deepens through mutual support.

Nana’s development is marked by increasing confidence and resilience. She learns to communicate her feelings, to trust new friends despite past hurt, and to confront Yuyu’s manipulation. She also learns to balance her own needs with compassion for others.

Her notable abilities are not supernatural; rather, she possesses emotional strength and empathy. She has the courage to make a physical change—cutting her hair—as a symbol of her new beginning, and she shows persistence in rebuilding her social world. Her ability to see the pain behind Yuyu’s actions allows her to eventually reach a more complex understanding of their history.