Because of a hearing disability, university student Kohei had made a habit of distancing himself from those around him. But after meeting the exceedingly cheerful Taichi, he gradually begins to embrace a more positive outlook on life. Kohei eventually begins to see Taichi as more than a friend, and after he finally confesses his love to Taichi, the feelings become mutual.
In this new addition to the I Hear the Sunspot series, Kohei continues on as a student, while Taichi makes his way out into the working world to pursue his own calling and the two begin a new life together!