Looking back in life, it could be full of regrets; people you wish you hadn't hurt, and events you wish you hadn't missed. If you could travel back in time, would you make things unfold in a different way? On his death bed, Yu Guo remembers the friends he grew up with and the promises they made to each other. But growing up is a beast. Promises and relations may not always last as you walk down the path of life.