Nari led Klaus inside the room. The door was destroyed when she blasted it with her arrow. But that was just Nari being Nari.
She is someone who knows how to destroy but not how to build.
In fact, Klaus was lucky she was just looking to hurt him. If she had wanted to kill him, the entire outer area of the academy would have been destroyed by now.
"What do you want to show me?" Klaus asked the moment they entered the room.
Nari didn't immediately answer. She moved closer to Klaus, brought her head close to him, and sniffed him.
She actually sniffed him like he was some kind of perfume.
"Weirdo, what are you doing?" Klaus asked, taking a step back. Nari was looking at him crazily, so he had to step back. Who knew what she was up to?
"There is something different about you." She moved closer and sniffed him again. "Something happened to your blood, and I feel like I should have a taste."