
It's totally a breath of fresh air that I don't have to see horses and knights in a battle in an Isekai manhwa. The setting and the worldbuilding is really unique. The MC is not relying on his "future events" because the world he's in isn't based on video games/novels in his original work so all his achievements are all thanks to his knowledge of his REAL world and the rest is because he's a genius cunning bastard lol.

From the get go I don't think both ML & FL are redeemable and suit each other with the mental gymnastics and tortures these two give each other, it sounds very toxic and there's no way to make them happy. FL doesn't do anything wrong but Mag doesn't know that yet at the same time Mag is justified in his revenge on FL but FL doesn't deserve this aaaaaaghhh my head hurts ┗( T﹏T )┛

Maybe it's the translation, but calling her a bitch IS supposed to make him mean, catch people off guard, to enlarge the gap between his words and feelings. If you're put off by it then he's successful in making people leave him alone. Calling her the usual idiot or baka almost sounds childish and has no impact to his gap moe. The usual "idiot" would make normal people still linger around him, so he needs to be more rude to pushy people like our MC. But clearly even that is not working since she has mind reading power ╮( ̄▽ ̄)╭
The character design is really eye catching. More of this please!