As Tetsuya impatiently waits for the train to reach Ozuka station, he reminisces about his life. He ponders a world that is in a permanent state of change, and that eagerly discards old values in exchange for new ones. A world that hasn't really felt like it was his for a long time. Things were easier when Tetsuya was young, but then his life changed one fateful morning, long ago.Nothing would be the same. Everything was lost.Eternity was gained.But...