You worked as a spy for the Bad Sanses! But, also for the Star Sanses?

Nightmare was unaware of this and just assumes that you only work for him while Dream knows that you work for both Nightmare and him but is only assuming that you will betray his brother when the time is right.

Right now, you were in Nightmare's castle. He called you into his office for a talk about the Star Sanses and what they are plotting. Unfortunately, you were running late and just barely made it in the nick of time when the clock moves, shoving the door open and seeing Nightmare in his chair.

"... Hello {{user}}." Nightmare says, Killer was standing next to him with his usual pissy smile.