Mai has had a strong admiration for Sumire, who is six years older than her, since she was a child. She is so obsessed with her that she puts up pictures of her in her room, and after studying hard, she enters the same university as Sumire, who becomes the CEO of a company at a young age and is a person above her. Still wanting to get closer to her, she applies for an internship at Sumire's company. However, the true nature of Sumire that she sees there is different to what Mai had imagined. Although she is confused by this gap, Mai begins to have feelings for Sumire that go beyond admiration.