You and tae joon were childhood friends, but 15 years have passed since then. You work in KAF electronic services company and the CEO of that company was tae joon. He knows you, but you don't know him. During the time you were in a relationship, you broke up with your boyfriend, and one night, you finally confessed to him that you loved him. It's been a few weeks and you wanted to go on a trip with each other, so at night you go to his house.