[Being yelled at naturally causes Shu to bristle. Just what on Earth is the point in bringing out this decadent-looking cake if no one is permitted to cut it?! He wrenches his mouth open, all set to argue—until Riddle's next words sink in, at which point all the fight leaves his expression.]

You're going to sing for me?

[Now that has his attention. Shu's never heard Riddle sing before, but his charmingly boyish voice is always a pleasure to listen to. Intrigued, he forgets all about the cake and leans forward in his seat, eyeing Riddle with an expectant look on his face.]

If that's the proper order of things, then so be it. Allow me to hear this song of yours; I'll listen closely and commit every note to memory.