Black and White Contract

In this world, once a contract is established, it must be kept, otherwise the body will die and the path will disappear, and there will be no reincarnation. "You were born before I was born, and I was already old after you were born." Time is moving forward, but memories are stuck in the past. There was a lost boy who unexpectedly had the opportunity to sign a contract with "God" at the wrong time, allowing him to walk the same journey all over again. If it were you and given the chance to start over again, would you sign it?