When Gu Ye woke up, he became the shopkeeper of a grocery store that was about to close down in the border city. There are only three items left in the store that no one dares to touch: an old lamp that can guide the way, a copper bell that can hear the echo from a distant door, and a house number with an unknown address written on it. When he touches these goods, he can see the fairest terms of exchange, but he must bear the corresponding price for a transaction. The reborn doorman Su Wanqing believes that this store will lead to a world gate disaster. Shanglu Hou Qindu, who has memories of his past life, wants to turn all the doors to other worlds into his own business. Gu Ye had no choice but to start by repairing the first door, taking in customers who were rejected from all walks of life, looking for the missing shopkeeper, and establishing a passage that was not monopolized by any force. It wasn't until the house number lit up that he realized that his journey through time was no accident.
