Zui only wants one thing: to live an ordinary life without being noticed. As a quiet loner, he has grown accustomed to being ignored, and honestly, he prefers it that way. But everything changes when Aliya, a cheerful and strangely persistent girl, suddenly begins approaching him. At first, Zui assumes she's just being friendly. Then she starts blushing around him, asking about his relationship status, and getting suspiciously jealous whenever another girl comes near him. Before long, Kurumi, an outspoken gyaru with an equally unpredictable personality, starts sitting beside him in class. What begins as an ordinary school life quickly spirals into awkward encounters, jealousy, rumors, and unwanted attention. Zui can't understand why these girls are interested in him—or why his peaceful existence is collapsing so spectacularly. He wanted to remain a background character. Unfortunately, the story seems to have other plans.