Yeon Woo and Joo Hyun met for the first time when they were 17 years old. After 4 years of friendship, the guy invited the girl to date. Then came the 100th day of the relationship; everything was fine. They promised each other that they would love each other even more and presented gifts, but in the evening, the girl left him without explaining the reasons.
Yeon Woo is very upset; he
