Mu Sijun wondered how long Xu Yuning had been back undercover in the Kang family.

He had some trouble remembering.

Every second he spent since realizing that Xu Yuning was going back undercover was as long as half a century.

But no matter how long it took, this was the first time Xu Yuning had asked for their help.

He, on the other hand, could only sit in this study, unable to do anything practical, much less comfort Xu Yuning.

Seeing that no one was willing to ...