Chu Mu had recently completed the strengthening of the Wind-binding Spirit and his Soul Power was running low. Not to mention, he was quite drained from performing two consecutive soul pet strengthenings in such a short timeframe.
Thus, after finishing the Emperor Level strengthening of the Wind-binding Spirit and feeling excited for a while, Chu Mu shut himself in his room to mentally adjust.
Chu Mu hadn't found it odd when Xiang Yunyun mentioned that she would visit. He assumed she wanted to investigate the High-Level Emperor's affairs.
What caught Chu Mu off guard, however, was that Xiang Yunyun arrived with his own mother! And they talked about introducing a sister who could help him avoid succumbing to evil?
A sister? What kind of joke was this?!
Liu Binglan indeed looked very young, but she was Chu Mu's mother.