Nanako Yukishiro is a 16-year-old student at Karai High School who is known for her beauty and composure. However, she has a unique way of communicating as she is unable to speak. Instead, she expresses herself through senryuu - a delicate form of poetry with 17 syllables. On the other hand, Eiji Busujima has had a darker past as a troublemaker during middle school. However, he has found a new interest in senryuu which helped him turn his life around. Despite his tough exterior, Eiji shares a common interest with Nanako as both are members of the Literature Club. Their relationship may seem peculiar, but the two teenagers have no trouble understanding each other. Senryuu Shoujo follows the daily lives of Nanako and Eiji, showcasing their charming personalities and unique perspectives.