'I don't know why destiny allowed us to meet each other when there's no way we can be together. I cried a lot because of you...... I laughed a lot beacause of you...

The on-off switch got stuck a long time ago, and it doesn’t work anymore.

Cho Hanuel works a mundane job as a ordinary office secretary. Although her proficient Japanese language skills proves to be a pivotal part of her job as she currently works as an interpreter. After negotiations with an important client, she flies to Osaka only to find out she is on the same flight as her former classmate Lee Jinki. Will this meeting bring about past feelings?

It’s ok, if you don’t love me. It’s ok, if you hate me. It’s ok, if you leave me one day. It’s ok, if you will never get to know my feelings towards you. It doesn’t matter. As long as I could still watch you from afar.

Junhyung loves someone he cannot have, so he could only look from behind.