The silent demon-slaying girl only wants to be loved by her brother

“Brother, I seem to like you a little bit.” At dusk, the white-haired girl said. “Don’t say this with a nonchalant look, okay? I am your senior, brother, benefactor, and of course you can also respect me as your godfather… But forget it, I admit that you look like you are dancing on my XP now, white hair, blue eyes, silent, and maybe a little scheming, but…