In a small town in Incheon, there is a thirty years old man 'Won-June' who works at a small civic group. For him, the normal life which is having a career, getting married, and having a relationship is the difficult thing. One day, a bioengineering doctor comes to him and suggests being a subject for a medical experiment on a living body. Finally, Won-Jun who is full with a sense of inferiority, takes the offer without self-esteem.

40,000 years ago, a mysterious light fall down on the land from the eastern sky and earthquakes start to shake the earth with huge explosions. After that day, one unique animal without hair begins to appear between the apes. When he is all alone, an apple falls down on his head. He gets a concussion from the apple and this loner gains recognition ability through this accident. And thus, human beings are awaked from their enormous sleep.