Mari Tokumitsu

As both Moritaro's aunt and the landlord of his apartment, she makes her living as a professional manga artist. She often loses sleep and skips meals to meet deadlines, and while her personality is cheerful, it carries a distinctly childlike quality. She takes particular delight in teasing Moritaro about his personal life, frequently leaving him red-faced. Although she projects the image of a dependable elder, she occasionally reveals a side of herself that dislikes being alone, making her a lively supporting presence throughout the story.