Sena Kuroi

Aito's assistant. She is known as "Super assistant" and thanks to her, Aito is able to finish his manga before the deadline. Despite her looks, she's supposedly 19 years old. She loves sweets and cute things but tries to act as a professional assistant, since she hates being treated like a child. But she will very gradually let down her guard towards people who treat her with kindness, leading her to eventually fall in love with Aito.