"Aw, come on." Kotetsu laughs sheepishly, running a hand distractedly through his hair. "I wasn't spying. Just trying to be a good audience." But, now that his presence has been acknowledged, he makes his way further into the room to join Barnaby. "It sounded just fine, Bunny. If that's you when you're rusty, I can't wait to hear how you sound when you're polished back up."

He kisses his boyfriend on the cheek before sitting himself down on a nearby bench. "Besides, this place could do with a bit more music sometimes." He reaches out to run his fingers absently over the keys of a piano. They give out dusty, discordant clanks. "Maybe you and Mettaton could play something together for people sometime."