It is August 12th. After the remote control to his boarding house's only air conditioning unit is inadvertently destroyed by spilled cola, "I" devises a plan to return to yesterday in a time machine to recover the remote before it breaks. However, his prankster friend Ozu cannot resist playing with past events, even if it means bringing the universe to the brink of destruction. Now "I" finds himself racing through time to avoid disaster.
La historia sigue a un hombre que se enamora de una joven, y hará todo lo posible por llamar su atención. Adaptación de una exitosa novela de Tomohiko Mori publicada en 2006, producida por el equipo responsable de la serie "Tatami Galaxy" y dirigida por el aclamado Masaaki Yuasa ("Ping Pong", "Adventure Time"), siendo su segundo largometraje tras "Mind Game".