Zhao Jushi, who was living in the Eastern Han Dynasty, accidentally traveled to the 21st century during a military operation and met Xie Zhiyu, who had accomplished nothing but was optimistic and positive. In order to find a way to go back, Zhao Jushi, who was unfamiliar with the place, had to bind himself to Xie Zhiyu. In the process of getting along, Zhao Jushi discovered that this girl who was cheerful every day had actually been tortured by past experiences. The two had already established trust and friendship when they fought against the mastermind behind the scenes. This time, Zhao Jushi would not stand idly by when faced with the sluggish Xie Zhiyu. After encouraging her to untie her knot and face a new life, Xie Zhiyu also broke through the "shackles" and decided to help Zhao Jushi return to the Eastern Han Dynasty. As for why Zhao Jushi traveled through time? What tasks must be completed to return to the Eastern Han Dynasty? Will all the turmoil of returning to the Eastern Han Dynasty subside? Please pay attention to the main text of "Thirty Years"!