Childhood friends, Yamabe Kanoko and Mizuno Shiori. During their school days, the walls of adolescence kept them apart, and even after becoming adults, they found it hard to express their true feelings due to the "gaze of others". The intertwining of their desires to grow up quickly back then and their reluctance to be adults now leads to a complicated love story. This is a slightly bittersweet yet incredibly sweet romance that depicts the changing shape of their love as time flows.