Youthful, real love between a pure girl x sharp-tongued boy. "The boy I've had a long unrequited love for has found himself a girlfriend. On top of that, she's my best friend. Even though I'm the one who met him and fell in love with him first. Why did he not choose me...?' Heart-broken Aya meets Ryuu, an unpredictable, older boy. Aya gradually begins to be drawn to this sharp-tongued, but kind Ryuu. However, this love isn't straightforward at all. "When you fall in love, you can't keep being a "kind, good girl'." Ryuu's words pierce her heart, doesn't disappear and is painful, but...?