First Mission?

Just the fact that his daughter was actually suffering for years under Mega Organization had already made Nan Hai Yan felt like a knife was cutting through his heart. 

As for Human Association wanted him to be responsible?

Nan Hai Yan will say clearly that he was prepared and will be wiling to do so. Because he knew that it was his oversight that had caused Nan Hua to be thrown to Mega Organization and suffered for a long period of time. 

Long Shao Ting sighed. "They didn't want you to be responsible for it. The information that Nan Hua sent to them is already more than enough to let them find all the traces of Mega Organization for nearly a century. There's even detailed background where Mega Organization came from and everything. It's hard to believe that the information came from a girl who's only 17 years old."

Nan Hai Yan grunted.

Even if he knew that Nan Hua had done a great merit, but he still couldn't be happy with this.