Especially since she is an enhanced human (superstrength, healing powers, can talk to animals) who also came from a zombie apoclapyse kind of world. The male lead is also not a major asshole which is always a plus. He gets flustered and a few times upset at MC due to misunderstandings (ie she accidentally feeds them both an aphrosidac and has very modern prespective on what happens but he's very much traditional and intends to do the 'honorable thing'. Except everyone currently thinks she's a male cause her mother and grandfather dressed her up as one in order to take the throne...). He is overall very competent and rolls with MC's quirks well though.
Warning: There is a few chapters that squicked me out due to explicit cannabilism. It's when she first meets the refugees and they're starving so... (think snowpiercer). But for the most part they don't really discuss cannabilism in detail beyond the MC going 'this or that is at least not a zombie trying eating people' kind of thing.