Nagatsuki Botan is one of the main characters in Malevolent Spirits: Mononogatari. She is a quiet and kind young woman who lives with several tsukumogami, objects that have gained spirits. Botan has a special connection with them, which allows her to understand their feelings and communicate with them easily.

Even though she is gentle and calm, she is also strong and determined when needed. She tries to create peace between humans and tsukumogami and treats both sides with respect. Her kind nature often helps others open up, especially Hyōma Kunato, who learns to change his view of spirits through her influence.

Botan is known for her caring personality, calm attitude, and strong sense of empathy.