It feels weird to see Gramps interacting somewhat normal with another male servant.
Yan Quing is like an older brother to Gudako, so in this case it's him being stern towards his other grandchild.
Look!I'm sorry you still can't feel the flower, but...Ahh...Do not pick them without reason.Oh,Nothing happened, right?You're right!Even though you're touching it,You didn't have to hit me...Event my roomIt's a flowerOuch,I am not able to touch them,Ok.But they're very pretty.Serenity-Chan,Try touching a flower over my hand then!So many flowers!Sorry, I was wrong for recklessly picking flowers.So long as you understand.