"Ten years? One-tenth of the energy? Enough to supply the growth of tens of thousands of trees?" Richard listened to Tin Wood's words, pondering for a moment, then looked at Tin Wood and said, "I can agree to your cooperation, but the terms need to be modified."
"How do you want to modify them?"
"I'm satisfied with the total amount of energy you are providing, but I can't afford to wait ten years as I need a massive supply of energy right now," Richard said, "How about this, you change the ten years to one year. During this time, supply nine-tenths of the energy to me and use one-tenth for your life transformation.
When the one-year period is up, you will have your freedom and can leave me anytime. If by then you feel your transformation is incomplete and lack protection, I can continue to protect you until your transformation succeeds, and then you can leave."