It's kinda scary because you hear about gross misconduct of this kind of level all the time and it's not unrealistic to see a whole exodus of talent leaving company even if they are highly rated
This is so otome coded, no wonder the uninitiated readers are a little ruffled. Lieselotte is so very much your Villainess noble girl and Schmerz is the Untrusting War Hero ML.
Give it like 10 or so chapters and you'll have him being a yearning doof.
Just noticed just how much this reminds me of Eromanga sensei. Brocon imouto that's a shut-in, siscon ani who does a lot to support his adopted little sister and the successful senpai that's short, blonde and has drills for hair.