This drama is one of the TVB program tour series in 2012. Inspector Xu Weichen (played by Bosco Wong) of the Witness Protection Unit was ordered to protect the celebrity Qiao Jianghe (played by Jiang Zhiguang) who was attacked. Qiao Jianghe is the younger brother of the "mall magician" Qiao Jiangshan (played by Paul Chun). Jianghe offended Xiong Fei, a powerful man in Shenyang, and was killed. The police suggested that Jianghe accept the protection of the Witness Protection Unit. As a result, Weichen met Qiao Zilin (played by Linda Chung), the niece of Jianghe and the daughter of Jiangshan. Zilin has a perverse personality, is indifferent to people, and is even a little unkind. When Weichen and his team members first came into contact with Zilin, they all thought that Zilin was a spoiled rich girl who didn't care about the people and things around her. During the days of protecting Zilin, Weichen once risked his life to save Zilin. Zilin secretly liked Weichen and took the initiative to pursue him despite Jiangshan's opposition! Seeing his daughter become cheerful and active, Jiang Shan gradually softens his attitude and acquiesces. However, an old friend from 30 years ago, Li Shufeng (played by Li Guolin), suddenly comes back and stirs everyone's nerves. Wei Chen discovers that there is a secret between Li Shufeng and the Qiao brothers, which puts Wei Chen in a dilemma and struggles between justice and love...