Kimi to wa Gokai kara Hajimarimashita ga  

Kazuya Miike, a handsome yet melancholic high school student, penned his first love letter for Hifumi Utakane, who was mistakenly identified as Hifumi-san, the girl he had seen on his daily commute to school. This error led to the letter being delivered to Hifumi Utakane instead of Hifumi-san. What will transpire from this relationship that originated from a blunder?