After his father’s company found success, a boy left the countryside for Tokyo, where he became a popular middle school volleyball player. As his life changed, the quiet days of his past slowly drifted away.

Yet one memory stayed with him, a childish promise made long ago by a girl from his hometown, a promise he alone still remembers.

Five years later, fate brings him to the same Tokyo high school she attends. Whether that promise still exists, or was meant to be forgotten, is something only time will reveal.