The central theme of Asou Mikoto's four one-shots revolves around human connection through language and words.
In "Kotonoha ~Usuyou no Tsukebumi~," Maeda Kotoha develops a fascination for calligraphy after being impressed by the club president's skills. However, she misses the opportunity to confess her feelings before he graduates. Feeling remorseful, Kotoha crafts a heartfelt letter using traditional materials.
In "Kotonoha ~Ningyohime no Kowairo~," Manabe, an aloof student, decides to join the swim team despite her inability to swim. Her classmate Fukazawa becomes fascinated by her motivation and agrees to teach her, but is still curious about her determination.
In "Kotonoha ~Tenjousajiki no Naishobanashi~," Mihara Ritsu, a playwright for the school drama club, faces a challenge when she must write a play starring Nakajima and Seto Miyabi. Despite her struggles, Nakajima is motivated by Miyabi's past performance to create something great.
Lastly, "Kotonoha ~Shijin no Koi~" depicts how Sako discovers her secret feelings for a classmate while perusing Kumazawa's book of poetry. Though the poems vary from light-hearted to impactful, it's the latter that leaves a lasting impression on her.
