In the end, Kai agreed to his deal. In exchange for the Blood Arrow, he gave Sunny the two weaker arrows he had.
Sunny fed them to the Stone Saint, bringing her amount of shadow fragments to twenty-nine. That was two more than she had in the past, which meant that he received the same amount of fragments that he would have gotten by feeding her the Blood Arrow itself.
He didn't really gain anything, but also didn't lose anything. Kai was the one who really profited from their exchange.
So Sunny didn't lie when he said that it was an incredible deal.
After breakfast, which transpired in somewhat awkward silence, Sunny sprawled on the ground and smiled happily.
"You know, guys. These past few weeks made me realize something. Actually, it was all thanks to Kai, who introduced me... introduced me... uh... to Stev."
Effie stretched, making Sunny stutter and lose the train of thought for a second, then smiled with satisfaction and glanced at him.
"Really? And what is that?"
Shadow Slave now has a brand new Discord server. Join if you wish to chat with fellow readers or maybe even the author himself ;]
Link: https://discord.gg/NpDgaxRA6Y
I will also add this link to the novel's synopsis and my profile for ease of access.