Low Martial Arts Fantasy: the Correct Way to Use the Undead

[Low martial arts + strategy + Western fantasy + necromancer + counter-routine + multi-race + no system] Good news: I traveled through time after death, and was not only born in a magical world, but also in a noble family. Bad news: He's the second son, from the Baron family, and he's a necromancer - the kind that everyone shouts about. Traveling into this "skinny reality version" of Western fantasy world that is not romantic at all, not only are you not a brave man, but you also have to worry about being hunted down. After traveling to several countries and fighting for many years, no one accepted him. Okay, when I'm being crowned, don't jump out and say I'm a false emperor, okay?