Irreversible

The particularity of Xiao Ming: Why is he a "variable"? What potential abilities or destiny does he have? The purpose and destiny of the old man: Why does he help Xiao Ming so much? How serious is his injury? What does "not much time limit" mean? Ariel Helen's threat: What will she do on Earth if she takes over Ruoyun's body? After she finds a passage to regain her strength, will she pose a threat to the world of mountains and seas or other worlds? Will she and Xiao Ming/the old man have conflicts in the future? Ruoyun's fate: Can her consciousness be restored? Will Xiao Ming find out what happened to her in the future and try to save her?