Next there will be a trend to call the Trainer "Anata", and that will still be less embarrassing than calling him by name.
Ohmigosh hawawa...
You're such a grown-up, Nature...It's as though you're lovers...
No, I wasn't serious!!
—wait, why are you drawing a line at this, of all things!? This doesn't feel right!
"...somehow this doesn't exactly feel fair though!?" with the implied question.
Is calling him "Goshujin-sama" really that weird?
Yes.Calling him by his first name, without honorifics...
"Without honorifics" implied.Even though "Onii-sama" and "Master" are okay?...or something?Not... exactly... those two are also pretty unusual...How would you call the Trainer then, Nature?Huh, you're asking me...?Hmmm...I'd......call him by his first name...