Sato Tachibana a salaryman just wants to live in peace and quiet. Living a peaceful life without anything extravagant is Sato's philosophy. His mundane life is filled with color whenever he is talking with his love interest Aiya Suzuki. Finally managing to be able to go on a date with her, Sato is overjoyed. However, a dark fog that envelopes him on his way to their date changed his life forever. In the dark fog he hears three voices speak out to him, "Come forth for I shall?"