Sans happens to teleport in just as J starts explaining, off to the side and out of sight. Still bracing the crack running up the bridge of his nose from the fight he just had with the man in question - the timing of it all is almost surreal. He stands there listening, still not announcing himself. All the while, a tension grows in his chest. This prognosis... It makes him angry to hear. It isn't fair.

This guys a goddamn music mage and he didn't tell anybody about it until now? Just as J finishes, Sans punctuates the explanation by stepping into the room, the crack from his nose hole leading up to his brow plainly visible.

"Did you try?" he asks, a degree of force already present in that simple question. His left pupil flickers with bluish light. He clenches his hands at his sides.

He's not hearing this.