The Fruit of Surgery.

"Forget it, let's treat it as paying the tuition fee." Looking at Stark who was very depressed, Shen Fei comforted him in a low voice.

This kind of black market transaction, if you are cheated, you can only consider yourself unlucky, because there is no way to track it down, and the land of nothingness itself is an illegal place, even if it is Asgard here...