"Most of the worlds that have their chosen ones killed before the Reset, they become unable to generate life after the rebirth of the new universe," The shadow said. "That is because our mana is sent back once we accomplish that. That is why if you kill her now, you will doom an entire planet to become a dead one."
"That is a pretty good excuse to let them go considering that they ambushed me and almost killed me numerous times… Oh, wait, it actually isn't a good excuse," Luke said. "As if I could care less about the fate of the worlds that produced the assholes that tried to kill at first sight."
Considering that Luke had already killed one of their friends, the others had more than a little bit of animosity toward him, so letting them live out of mercy would only cause problems for him later.
"Give me your word that you will let her live, and then I will grant you the skill book that will teach you how to make a clone," The shadow said.