**Childhood Encounter**: Five-year-old Luo Guanguan met fourteen-year-old Zhang Yi in a water town in the south of the Yangtze River. One was innocent and ignorant, the other was young and energetic, and they formed an innocent friendship by the pond.
- **Twist of fate**: Luo Guanguan was picked up by his parents and left Jiangnan. He lost contact with Zhang Yi, leaving only a straw butterfly as a thought.
- **Reunion Moment**: Twelve years later, seventeen-year-old Luo Guanguan met Zhang Yi again in Shuzhong. The once gentle boy had turned into a businessman with sharp eyes.
- **Mystery of Identity**: Zhang Yi has a cold attitude and seems to have something to hide, implying that he has experienced unknown changes in recent years.
- **Emotional entanglement**: After the two reunited, their relationship was full of temptation and alienation. Luo Guanguan tried hard to find the shadow of the gentle brother in his memory.
Concept: Relaxing and warm little sweet article