In high school, Nanako Yukishiro stands out for her silence, expressing herself solely through senryuu, a 5-7-5 haiku form. Supported by a unique group of friends including the former delinquent Eiji Busujima, the perpetually single Amane Katagiri, the talkative artist Kino Yakobe, the enigmatic Tao Hanakai, and Eiji's pseudo-sibling Koto Ootsuki, Nanako finds joy in her unusual yet vibrant school days.