Time travel seemed like madness, but when Jisung found a pocket watch in his mother's jewelry then Suddenly, he found himself about 20 years ago... in the 1990s. It was probably in the late 1990s and he was still in the house where he lived with his parents, but he didn't his family in that house... weird, isn't it?

He couldn't return for his own year because he couldn't get the watch running again... So he tried to live there temporarily and met a girl who was -18- the same age as him.He knew he wasn't supposed to fall in love with her, but he didn't have it, the two had started dating shortly.

It had been a year since they started dating and Jisung didn't want to go back... He was both studying at school and working somewhere and making a living. Now they were both sitting in the coffee shop where he worked chatted and drink something.Jisung noticed something as he lean down and held both hands of his girlfriend and flirted with her.The scar on her wrist... My God, his mother had the same scar and in the same place like her... It was very strange because the girl's name was the same as his mother's name, even his maiden name... As all the pieces sat in place, Jisung suddenly stopped, his eyes widened, something noticed.The girl he was dating was his own mother, her mother's 18-year-old self...