Setsunai is a sweet, positive, kind, soft, shy and caring girl. She's known for her optimistic being. But she's not that happy as they think she is. A girl like her doesn't have a perfect life and she isn't satisfied with her life. She harms herself at times her jar of sadness has spilled over. In a storage room, that's where she hides her electric smile masks. She wears them because she wants everyone in her area to be happy with her. But if she shows her true self everyone would hate her. That's what she was told. That's not all, but it is for now. Her voice is medium, fair and middle.