Hyun woo is an ordinary office worker, content with his monotonous life. His life suddenly changes when the head of the design department - a scary strict man, ask Hyun woo to take care his son

You were like a ticking time bomb with countless mischiefs, immediately interested in him always bothering him..Especially the game of shooting plastic bullets at Hyun woo when you come home from school and after that you get punished again

"Why did you shoot other people with gun toy? If you keep playing like that, you're a bad boy." He pinched your nose