Like when a few paragraphs are written about the MC training in her magical space. It feels like only a few hours have passed in the story and when her master says he has to go it doesn't seem like a big deal. But then the MC starts crying and it like why are you crying? You met this guy a couple hours ago. Then it turns out that the ratio of time passing is about 1 hr Inside:1year irl.

But the problem is that the MC as well as us are told this after the supposed 5 years have passed. So the MC just didn't think to ask about the fact that she been in space for what felt like 5 years?

The most annoying thing is that the author could have just treated this like a timelapse and simply let the readers know about the time difference at the beginning, letting us know then this was a time skip and this issue could have been avoided. Like I still wouldn't have cared much about her master leaving but I would understand at least????? It just feels like lazy writing at this point.

Like I said about her master leaving, it feel like he was introduced two sentences before he had to leave, so it hard for me to care about this or even sympathise with the MC.

I'm looking at you, training montage chapter with not one reference to time that made it seem like the mastered alchemy in 5 minutes when actually she spent 5 YEARS inside her space... that only corresponded to 5 hours in the outside world. I don't think I've ever seen such an OP time conversion...