Gu Chuan accidentally enters an antique business war story, becoming a probationary security guard at the Yunque Collection Museum. Understanding the authenticity and potential risks of the collection, he only wants to get through his probationary period peacefully. Due to a special opportunity, Shen Zhiwei and Shen Henian can hear his inner voice, yet they always insist on acting in accordance with the law and regulations, verifying with evidence. Faced with collection swapping, fake paintings entering the museum, framing, and underground resale, Gu Chuan goes from cautious self-preservation to active protection, assisting Shen Zhiwei in uncovering the truth and recovering genuine artifacts. In the end, the relevant individuals involved are dealt with according to the law, the genuine artifacts enter public collections, and Gu Chuan also gains a career and romance after safeguarding his bottom line.