"He scares you more...? What? R-Reira..." Yuzu uttered, confused. "Listen, Reira, this is getting crazier and crazier. You wanted me to be your big sister and now it's time I started being that. I'm going to protect you, okay? He'll... he'll have to kill me if he wants to keep you."

Yeah, after she just got through yelling at Yuya over the EXACT SAME THING.