After graduating from college, Xu Yun starts an internship. On the train, she runs into Zhou Wei, who is being pursued by the police. A story of hunter and hunted begins. Can she hold on to her principles, or stand firm in her convictions? On the grasslands of Tibet, Zhou Wei is like a wolf king back on his own turf, doing whatever he pleases.
Since childhood, Xu Yun has held fast to one belief: she must find her missing younger brother. Even though her memories of what he looks like have grown hazy, and all she has to go on is a childhood photograph, she will never give up. She feels that coming to this school brings her closer to her brother than ever before. After countless failures, her instincts tell her he is somewhere on this land.
Only later does she realize that she has fallen into the trap set by the wolf on the grasslands. To win her brother's freedom, she has no choice but to make a trade with Zhou Wei...
“How about trading your freedom for his?” Zhou Wei looks at Xu Yun before him, betting on whether he can ensnare her. It's despicable and shameless, but he's willing to take the chance.
Theme: Struggle against darkness and never give in.
