They were a pair of ordinary brothers and sisters who reorganized their family. They had no cold-blooded and aloof brother, no arrogant and noisy sister. They grew up and ran together in each other's innocent years, and drifted apart in the ordinary years... However, an unknown truth made one Everything began to change quietly... The sudden death of their parents, entangled grievances, and all the changes that came one after another made the two people who were originally close began to become estranged; and their young, simple and sincere emotions also began to change quietly after constant separation and friction.