Being in an unclear relationship sucks, but for Haruko, he never thought of it that way. Although having his feelings hurt for a very long time already, he still refused to let go of a girl named Rei who's very dubious and mysterious. Finally, Haruko decided that he'll ask Rei for a clarification of their relationship with each other, but before he even had the chance to ask her, something abrupt happened. Thus provoking his depression— the depression that will lead him to a dark abyss that sooner or later will give him all sorts of unimaginable, incomprehensible, and an endlessly deteriorating melancholia. Untold mysteries unravel right in front of his eyes as he continues to live his lonesome life.