Well going off the information available, seems like Sage Sirius did something to imbue "magic" onto Earth that previously wasn't there, which is why you have that contradiction.
Just like tower manhwas, tower/dungeon appears on Earth, monsters wipe out humanity, etc etc. Usually when the tower...
Sorry if we have to spell it out for you, but:
Ephthal can use level 10 because his soul dodged the magia burst.
Cliff can use level 10 cause he ate witches, and so did his subordinates.
Isaac can use level 10 cause it looks like he reincarnated too.
Since Dragons have a human form, no need to complicated biology.
The first meeting is straight out of a chuunibyou/angsty teen anime. You'll love it lol
Yup, basically part 1 out of 2 for the entire plot of this series.
Love this arc - I cry everytime I read it. An isekai Cinderella story.
Careful what you ask for, please binge responsibly.
The author of the WN/LN published it on pixiv, but you can use Google lens/translate in the web page.
This one starts at volume 7 after the Naden Arc...