Watching You

Jungkook was a scientist specialised in optics along with his pleasant voice. One day he became invisible when he reached the precise bandwidth without intending. However he did not know how to undo his mistake and he was declared absent by popular newspapers and news mentioning him as one of the most successful future scientists. After this accident he learns to live invisible but wishing to be dead of its every minute, he gives up all his hope and loses all his cheer. But until he encounters Jin in front of an aisleway of a supermarket.