Seohyun and Jessica were once a happy couple until Jessica left without a trace to be seen. It was the time when Seohyun was planning to propose. This devastated Seohyun for many years, but she later learned how to live without a partner. But one day, when Seohyun was going to get a cup of coffee, something, or more like someone, caught her eye. It was her. It wasn't until that day when she found out everything.