A boy and a girl who met in Weishi. Due to an accident, one went to a prosperous city and the other stayed in a quiet town. When they grew up, the two ended up living together due to an accident. The lost memories emerged bit by bit as their heartbeats intensified. But the person accompanying him was no longer her, but a tall and beautiful beauty, which made her feel very inferior. However, when she had nowhere to go, a man dressed in black appeared...