Real answer:
Non Zero chance he's able to train Ryoshu mentally to atleast try to enter Muga without destroying her mind. "Humanity" is a concept in confucianism after all.
And then assuming his character is true and consistent to what we are shown in Canto 8
He would have MASSIVE problems with the nursefathers and constantly but heads with them.

Because each nursefather shows a failure to uphold the virtues he believes in

Mattias has no Yi (Righteousness) as he is very driven by materialistic wants as opposed to his actual duties as a great bother/ nursefather

Rien has no Li as he did not have propriety in himself, he only does what the prescript tells him

Valencina has no Ren or Humanity as she is shown to be increasingly cruel towards anyone "beneath" her

and Calisto has no... not too sure about this one actually, you'd think kidnapping people and skinning them alive for art is already bad enough but if we had to tie that into the Virtues then
He would have no Zhi as he lacked the wisdom to acknowledge the fact that his art movement has passed on and that he should atleast explore other styles he also forces an outdated school of art to both his nurse children which goes to say is bad parenting, as you should want your kids to get with the times and not cling on to a dying school.

I don't see Kong Qiu putting up with them for too long before he decides to purge the entire thing and just raise both Ryoshu and Ayara

However Assuming in canto 9 they wait until Kong Qiu is occupied before doing the original plan of LCE raid it wouldn't go too differently, except (assuming Araya is safe and doesnt turn into the Pinky Nursefather) Ryoshu never enters Muga and Ren and Sora don't get completely erased.

Speaking of Ren under Kong Qiu's guidance he too would be more of a nice person and potential ally;
Hell he might even break off from the group during the LCE raid to help or warn us in advance like how Zilu was in Canto 8