Tony tapped his fingers on the table, deep in thought. He mused to himself, "Since Fury sent over the files, they obviously know the outcome as well. Looks like SHIELD has no solutions, we're the only hope left.",Iron Man suddenly chuckled dryly, speaking to himself: "My father participated in the rebirth plan back then, keeping a tube of the most original super serum. I don't know what side effects it has. I've always kept it as a treasured relic from him, dear Guan..." Tony's face instantly darkened, revealing a sinister smile, "For world peace, for enhancing your abilities, I'll have to burden you a little! Thor, hold him tight! I'm going to get started!",Next, Guan Heng faces an extremely cruel training!。