A subconscious attempt to save someone resulted in a car accident. Fortunately, Xie Ze'an traveled to another timeline of his own life.
This time travel gave him access to a system called Huanmengfusheng, and this system actually came from an elderly employee of a company. Even though he was old, he also liked to call others master.
During this time travel, due to the conflict of different memories in the two timelines, Xie Ze'an not only lost his previous memories, but he was also unable to recall the memories of the other timeline.
The mission of the system is to let Xie Ze'an say goodbye to the past, and to allow Xie Ze'an to live a good life in this timeline by providing memories of another timeline in a timely manner and issuing tasks.
So far, it feels okay.