Storyline:

Before the age of nine, Jiang Mu lived a sheltered and pampered life as the beloved little sister, while Jin Zhao was the brilliant older brother everyone admired. But everything changed when her parents divorced. Her father left for Thailand with Jin Zhao, and it was then that Jiang Mu came to know that her brother was adopted. Refusing to let him slip away, she traveled to Thailand alone to find him. When they met again, the graceful boy she once knew had changed. The brightness had faded, replaced by a sharp-edged young man hardened by the streets. He fought in underground rings, raced through dangerous tracks, and lived in a world full of risk that was completely unfamiliar to her. Though she had longed for this reunion, facing him left her uneasy. The brother she had run toward without hesitation now felt like a stranger.