"Don't you think that will enrage my father...at least the part 'equal to your life'? Have you ever considered that your words might cause your entire race's annihilation?"
When the Elvyrs heard this, their eyes widened for a moment, and Jason's assumption about their inexperience and ignorance was evidently proven correct.
As such, Jason turned serious as he said
"I can understand the reason for demanding something like this from me, but I can't promise anything about my father because I have never really met him.
The only thing I can promise and sign in a soul contract is that I will return the favor I owe. Other than that, I won't sign a contract saying that I owe you a favor equal to my life or anything like that.
Take it or leave, but understand that your decision might as well decide over the future of your entire race! Be responsible about the decision you will take and live with the consequences!"