Two male protagonists Lu Zhifeng-Shen Duocai [Master·Apprentice]
Shen Duocai is a second-generation rich man who later learned that he was not his biological child. When being sent back to his biological family by the Shen parents, a car accident occurred, causing Shen Duocai to fall into a coma and almost die.
When Shen Duocai woke up again, he found that he had actually traveled through time. He entered a world of cultivating immortals and had a system 009. He had to complete the task of cultivating immortals before he could return to the original world. Unfortunately, the system only left a system store, which disappeared for unknown reasons.
Shen Duocai could only slowly explore on his own.
Later, when the system came back, it informed Shen Duocai of the mission...
Shen Duocai was very defensive.
Concept: Faulty system