This story is about a 36-year old university teacher, Hao Huigui, who doesn’t live a happy life. He has put with up this kind of life and hopes to go back to his unclouded teenage. By a chance, he goes back. Unexpectedly, he is still 36 and becomes an intern class adviser of grade 12 students. In his class, he meets another him at the age of 17, Liu Dazhi. Hao Huigui knows what Liu Dazhi will face and suffer in the future. But when the man of the world tries to change this passionate boy, everything doesn’t seem to be easy....

Bai Yinqi, the handsome and intelligent king of Xumi State, ascends the throne at a young age, but becomes a mere figurehead under the control of a powerful high official who intends to assassinate him. During several unsuccessful assassinations, the king falls for a female assassin, Yu Yan. In one assassination, he and his loyal bodyguard, Tian Xiaoli, fights against her together. Unexpectedly, they travel into the modern society in 2018 due to a mysterious watch. Bai Yinqi becomes the sole heir of Bai Group as a bastard, still beset with crisis. Luckily, Tian Xiaoli is always at his side. He meets Yu Yan again, but she doesn’t remember him. Therefore, the king steps on the road to the peak of power both in modern and ancient societies. Meanwhile, he tries to win the heart of his beloved girl....