"To me, he's my destiny. To him, I'm just a girl he knows."

A young woman grieves the unexpected death of her neighbor and former high school classmate, as she liked him ever since she met him. She had never gathered the courage to confess, and she wasted whatever little chance she had with him.

During a bus ride with her editor after a meeting, the bus gets into an accident, and both her and her editor find themselves transported 10 years in the past, finding out that they were schoolmates.

Together, they agree not to tamper with the past, but she progressively starts seeing this as a second chance to save the life of the boy she loves.

(Source: MU)