Hermione is still making her rounds around the party, when she hears a very familiar giggling. Crookshanks hisses slightly, turning to follow the sound. And she follows him.

It soon leads them both to Katsuya, stuck under the mistletoe, and someone who looks a little like Katsuya standing nearby.

"Katsuya! Did the Nargles infect the mistletoe? Are you stuck?"