I really like Larelle's arc of hating the hero, to realizing he's actually pretty good for her (since he lets her get away with shit she shouldn't) and then realizing she's actually liking this guy and what he does. She and the Hero are on the same wavelength in a lot of ways, but it takes awhile for them to realize that how well their goals and wants match up. I'm a bit surprised myself, because while I never disliked her, the more I see of her the more I warm up to her.
And you know what? She's waifuable. And she wants to be good enough to be waifuabled, while being okay with the hero getting a harem. She doesn't do the 'Why do you keep getting girls' like Alina, she just wants to be the best harem girl in the harem.
So yeah, Vote for Best Harem Girl who is also a Necromancer.