Okay who are you and what have you done with our Shiro!?
Oh yeah I forgot since I waited so long to read, Shiro (and Pururu?) Don't speak human so they're definitely going to cause a scene at some point, especially if Keisuke forgot too since he has always been able to communicate flawlessly with them.
"i feel like i've gotten somewhat used to the human world" translation: i'll try not to cause trouble but mostly i've gotten pretty good at sweet talking you.