@nevian70gr No problem and not to be nitpicky but on page 22: those who do dowsing are called dowsers not dowswers. It looks like you guys just had a typo. Thanks for all the hard work.
What if the teacher is also an immortal and is secretly the empress she was talking about in class who has lived to this day? I wouldn't put it past this series to do something so crazy.
I thought that it was already indirectly shown that this didn't take place after the storyline but seems to be randomly set. In the blacksmith chapter the holy knight met Kurobee for the first time, but Kurobee already made weapons and armor for him in the main series (I'm pretty sure it is...
It seems that no one noticed the jab at all of us: the insult to Kokoa "You read it, that means you are dumb." Ouch! I could feel that burn so hard. Calling out everyone who would read a Gyaru Isekai series as being dumb... I love it!
It wasn't shown in the manga, but in the LN they were fighting on top of the train with attachable metal grips on their shoes. That makes not being blown off the train just a teensy bit more believable. I love all the bullshit in this series.