Why weren't Puck and Emilia surprised when Subaru called out Emillia's spirit to activate the crystal shield?
After Subaru returned after his death, he hadn't made any contact with those two, Puck and Emilia, whatsoever. In that situation, how come Emilia never asked about how Subaru knew what her spirit companion's (Puck) name was and for how long it could stay active/on duty.