..Ah, this partly explains it. If the girls personalities and mindset here is the exact same, with only the premise that the MC here had the balls, and wasn't as blissfully dense, then this would explain why out of all the girls, Hinata, in our herbivore-kun's eyes is the most "normal" and appealing girl compared to the others.
She fits the vanilla girl archetype on the surface, but has something else going on that's why she's less "aggressive" compared to the others that's why she's holding MC's attention.
Likely, if on MC's previous world, the moment this "normal" and "pure" girl gets a taste, she'd go off the rails looking for that dopamine hit... as long as pills and condoms are included.
What I'm interested now though, is what gave her this mindset in a world such as hers? She might have had a jarring experience somewhere at some point... 🤔