"Who are you?"
"I am Song Jinyao, a time traveler, a fusion warrior who resisted the collapse, a pioneer of a new civilization, a savior who saved humanity's crisis several times, a sinner who destroyed the world, the last master of mankind, the master of Chaldea No. 48, The predecessor of Matthew Kirilet, and a human being rejected by humanity.
"Why are you here?"
"Because my mother said I was a bad boy, and bad boys don't live long.
"You who have been abandoned by human society, please make a deal with me. I will give you a life that will not be denied, but I hope you can save this world."
"Okay."
Concept: Being 100% lucky is sometimes not a good thing