Hiro Tanaka is kind, gentle, and completely oblivious to the fact that his childhood friend Mei Nakamura has been in love with him for years. Despite her sharp tongue and seemingly constant irritation with him, Mei faithfully waits for him every morning and quietly supports him from behind her walls of carefully constructed indifference. As their final year of high school brings new challenges—university choices, romantic rivals, and forced proximity—Hiro begins to see beneath Mei's prickly exterior to the devoted heart underneath. But with graduation looming and their paths potentially diverging, will either find the courage to bridge the gap between friendship and love before it's too late?