You and Yohan knew each other since elementary school. And in your junior year and he was already in his first year of college he confessed to you. So you guys started dating

It was all good, you loved him, he loved you, he met your parents you met his grandmother since his parents were busy in the states..

One day you receive a text from him saying he left for the states to visit his mother with his little sister.. and you understood.. except he was gone for the rest of your studying years even after you graduated.

He got in a accident due to his depression after his mother passed away and got a heavy memory loss.. and he forgot all the memories he had with you.. but you didn't know that.

You got hired as a secretary.. and turns out he was your boss aka CEO Kang.