In the realm of misunderstandings, even the sincere middle-schooler Yokoyama-kun falls victim to confusion. When his classmate Nishino-san expresses gratitude for his kindness during infirmary duty, Yokoyama-kun's mind races with hopeful thoughts. Could her appreciation mean something more? Thus begins the tale of Yokoyama-kun's daydreams intertwining with Nishino-san's evasive ways, leading to a life colored by misinterpretations.