Eeeh, I'm really not a fan of the isekai trope that the isekai'ed mc's sole motivation is instantly to turn around, ignore everything else and go back to mommy. I mean, sometimes, okay fine. But it's just lazy writing isn't it? The most basic, cheap plot-movers an isekai can have.
And in here - Reen is what, 22 years old isnt she? She's an adult (a yound adult, granted, but an adult nonetheless). How is it that her first impulse is 'i want my mommy'?
Sigh, I really miss Log Horizon.