C87 Kidnapping
It wasn't an exaggeration to say that it was Mu Yanbing who had helped AZ get to where he was today. Of course, Susae's influence in the Arts Festival was also an indispensable part.
In any case, the two of them had worked together for many years and were very close to each other. At least, to Mu Yanbing's character, he was one of the few friends that he thought highly of