
The sidestory is longer then season 2...
Could be a season 3, to be honest.

The series ended quite a bit ago, but I'm prettu sure back then it was decided that the side stories, are volume 2 (or "season 2") of the novels, however the manhwa team just decided to make them into "side stories".
I might be wrong on that- but just know there are a good few more chapters left to go.

The german cursing...i would never curse like that...thats so cringe ( ̄∇ ̄")
And not 100% correct.
"So ein mist" would be more like "what a crap" or "what bullshit".
"This is Nonsens" would be like "Das ist Blödsinn/Unsinn"
"I don't care" is "das interessiert mich nicht" or "Das ist mir egal". I don't really get the context for that here...
"Verflucht" is "cursed"
"Curses" would be "flüche" (more then one curse)
Buuuuuut...i would say, we don't really curse like that in this kind of situation...
it would be more like "scheiße!" (Shit/crap), "Fuck!", "verdammt!" (damnit)," Bullshit". More singel words, with impact. And yes, we curse in english too (⌒▽⌒)

I'd rather translate: I don't care. With I shouldn't care. = Es sollte mich nicht interessieren. Or: Es sollte mir egal sein.
(Speech bubble is too small for it though)
He is clearly irritated over Taeuis burst of emotions which is a clear contradiction towards Ilays statement that he wants to give hell to him.
But yes, Germans swear in singular words or they explain their curses thoroughly. :'D
Dohan is such an annoying prick....
(╯°Д °)╯╧╧