Separated by a seven-year age gap, Ito harbors unreciprocated feelings for his dear friend Chiharu. Tragedy strikes when Chiharu falls critically ill, leading to an induced coma as a last resort for a potential cure. Seven years later, Chiharu awakens to a changed world where Ito has caught up in age and transformed from a classmate to a teacher. This intricate tale is further explored in the additional one-shot: Daremo Kizukanaide, Ato no Ari Ka.