Kumi didn't remember him, and that was his only regret.
Why did he have to be so inept?
He asked for the ability to turn back time. Because there was nothing else he could ask for. Nothing else that would give him a semblance of hope. Even if it was an illusion of hope.
Often they were fools. But, sometimes, they made the right wish. The sort she could take back their abilities for, and start the gear over.