A yandere young lady,
A time-traveling ruffian.
Cheng Lianyue has met two time-traveling men from "□□" in her life.
A person who does not produce culture, but is just a porter of China for five thousand years, is responsible for brainwashing her with various advanced ideas. He is a lucky person who has become an extremely popular minister by copying texts.
The other is a Frankenstein who only loves to invent, explore, and innovate. When doing experiments, she makes explosions due to disagreements. She is responsible for letting her use her yandere traits to harm others without fear.