Chen Yuan traveled to the Teyvat continent two years ago and unexpectedly met Hu Tao, the leader of the Rebirth Hall.
Two years later, Hu Tao died accidentally due to dealing with the death energy.
Guest Qing Zhongli told Chen Yuan that there was a "Secret of Resurrection" that could bring Hu Tao back to life in another world outside Teyvat, and gave Chen Yuan a crystal pendant.
World 1: The Buried Fulian
Fulilian invited Chen Yuan to travel together: "I don't know if the secret of resurrection exists, but we want to go to the former Demon King's territory to find the 'Kingdom of Heaven'. I heard that we can see our dead friends there."
World 2: Sword Art Online
Asuna looked at Chen Yuan, a "strange" player: "Secret Technique of Resurrection? Did you have an important partner who died and want to resurrect him? Well, I got news. I heard that defeating the Christmas limited boss can drop rare props. It is said that its effect is resurrection. How about it? Do you want to form a team with me?"
World Three: The Reincarnated Noble Assassins the Hero
The goddess looked at Chen Yuan who was summoned this time: "Want the 'Secret Technique of Resurrection' that can resurrect human life? Yes, as long as you successfully assassinate the hero, I will give you this skill."
