There is a mirror of reincarnation in the world, which is said to be formed by the essence of a sycamore tree that is fused with destiny.
Legend has it that if you get the Mirror of Reincarnation, you can know your destiny.
People have a chance to choose, they can go back to the past or enter the future. Once they choose, there is no chance of regret.
If given this opportunity, who would choose?