In a desperate timeline, in order to save his miserable childhood, Mu Huai transformed into the butler "Huaichun" and sneaked into the past to lead his young self to a new life. However, the villain took advantage of this secret and forced two generations of Mu Huai to become pawns. After the redeemed Mu Huai teamed up with the real Mu Huai in the name of "Mu Jingming" to defeat the villain, he discovered that the balance of the world required that one of them must die. Mu Huai commits suicide first, and Mu Jingming travels back to the starting point when he collapses, and dies for Mu Huai before he knows the truth. The two completed the same two-way redemption in their own ways on different timelines.
Purpose: Redeem yourself by crossing the world line