In Your World, of Course You Have to Be Responsible for Me

Before Su Mengying's 20th birthday, she suddenly appeared on a train traveling in nothingness. The train was constantly changing, but she was the only one traveling all the way to the terminal. She is an unfortunate person. Her nearly twenty years of life have been filled with loneliness and loss. When she took the time and space train to another time and space, she met herself of another gender - Su Yunfan. Does the paradox of time and space exist? How should she and he live in a new world where time and space are corrected? And why did Su Mengying board a train leading to parallel time and space? Was her meeting with him a predestined script, or was it the result of a fateful change? A meeting across time and space, and a wonderful relationship between myself and myself in another time and space began...