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…

As a group of university students go out for a night on the town, a sophomore known only as “The Girl with Black Hair” experiences a series of surreal encounters…

The members of a sci-fi club accidentally spill Coke on the remote controller of an air-conditioner during summer and suddenly a time machine appears in their sweating bath-like clubroom.