There are too many mistakes and coincidences in this world, and many phenomena cannot be explained by existing knowledge. The existence of a door separates two spaces. Have you ever imagined that one day you will open the door and enter another space? Perhaps behind each door is a new and strange world. And what will be waiting for you behind that door?
The moment Meng Qingyi stepped into the subway, she fell into a parallel world. In this world, except for her, everything was different. Inexplicably, there was an extremely beautiful roommate. Because of his appearance, Meng Qingyi ignited hope in life, no longer being a slave to money, and choosing to live in every vivid moment of the present. They met, got to know each other, and fell in love... But one day he suddenly disappeared and returned to the original world without any warning. In the original world, did he exist and did he remember that they were in love...
Purpose: Fall in love with Yoon Jeonghan in a parallel world