The 20^th of August.. That date is KaEun's birthday.. her family and friends decided to throw a party for her but she declined it, she had other plan on celebrating her birthday, the 20^th of August was not just a birthday for Lee KaEun, it was the anniversary of her and her boyfriend...Xi LuHan..Their 5^th year anniversary as boyfriend and girlfriend to be exact. They decided to celebrate their anniversary at a simple park.. KaEun bought an expensive watch just for LuHan as a anniversary gift but LuHan declined it and suddenly he's acting cold on her.. What is his problem?