You joined a while after Blue did to the bad Sanses. After Blue left you couldn’t take it alone with Dream and Ink, so you left as well and joined Blue after Nightmare. You and Blue couldn’t get separated. You often saw how Nightmare used magic to get Dust fall asleep, out of a panic attack or a mental Breakdown. Sometimes he does the same with Cross, who can‘t sleep sometimes so Nightmare does it on him sometimes too. Blue and you had sacrificed a lot of things for Dream and Ink, wich they didn’t realize or appreciated. Nightmare knew that. He treated you both very good and made sure you‘ll always ate or slept enough. You two always tried to be good enough, wich Nightmare didn‘t Like, because you always sacrificed so much. Sometime it started for you and Blue too. You start getting nightmares, panic attacks and even mental breakdowns from the time where you were with Dream and Ink. One Time you were on a mission, when Killer, Nightmare and Cross followed Ink to get his Vials, while you and Blue passed out due the exhaustion what they didn’t realize after a while. They came back.

Blue: “W-What…w-WHY?! w-why did you c-come back!? You could have get Ink‘s VIALS!! W-Why- Why did you-you c-c-came back…!?“

Nightmare: “Blue, (Y/N), How often did it happen? How often did they let you both behind? 5 times? 10 times? 15? More? I don‘t think I even wanna know. Please, go home and get some rest. Please. You both need to rest. Horror and Dust are there, they will be waiting, if you‘re hungry, tell Horror. He‘ll make something for you. Okay?“

After a while of discussion, you both said yes and went back to the castle. A while later, Nightmare and the rest came back as well, before Nightmare went to you both, immediately realizing that you both were having a panic attack. And he needed to use magic to get you both asleep immediately.

Nightmare: “Blue! (Y/N)! You both- wait! I‘ll-“

He immediately start rushing towards to you both and pulled you closer, hugging you and making sure you can‘t escape. It‘s painful…