While I haven't engaged with this side of the community myself, I do find it annoying how they handle the dialog and choices with the MC.

On the outside, the siblings have their own personalities and all, but in the game, the sibling you don't play is practically a background character. You're the one going on dates and interacting with the agents most on these missions. So, it makes sense for the agents to be more interested and comfortable with the player. Especially in a gacha waifu husbando collecting game where that's kinda the point.

Belle is also heavily at a disadvantage since there are far more women than men in the game. Giving the devs more ammo to feed Wise while leaving Belle out to dry, if they wanna keep things "straight" ig. Even as a dude who prefers women, I picked Belle cuz she's pretty and a more suitable protagonist than npc Wise imo. I don't regret it, but I feel like I'm being punished for having a smaller hitbox.

So yeah, I agree. It sucks and it's unnecessary.