I was referring to how she is studying the Japanese model to implement it in a school for devils. You just think about it, how Sona could influence the minds of young devils with Japanese culture and elements...including some of the less pleasant ones like work ethic. We're talking about Sona "I love paperwork-kun" Sitri.
So long as she doesn't rush things to a single mortal lifetime, which she shouldn't be doing to begin with.