The idea was originally found in A_Bored_Reader Undertale ideas for stories that hit me like the brick called Reborn! I asked permission to use it. Read the original if you're interested, but it contains quite a few spoilers for this story.
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["Thoughts of Nightmare / Palette" AU= Alternative Universe
Warnings: Bad attitude towards things, time jump, outside perspective, another interrupted kiss.]
– You mentioned a surprise to Ink before – Error/Goth remembering that he looking at him while mentioning.
– Yeah, I was thinking that you could help me make a puppet for him – Nightmare/Palette patiently waiting for his reaction. Goth looked at him recognizing the purpose of the gift and the performance.
– Punishing them with the memories of the past won't get us anywhere – Error/Goth in a bitter tone.
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– For the future, it will be very important for them to remember what they lost and what mistakes they made – Star very seriously.
– As long as Fate is in the picture, it won't let them learn from their mistake – Error grimly.
– We'll take care of Fate as well; in the meantime, we'll pull the strings and prepare our victory – Answered in a manner worthy of a Nightmare tactician. After a moment's thought, Goth nodded at the plan suggested by his words.
– I understand the intention and I will help – Error/Goth agreeing to help with a dark smile.
– Wipe that smile off, we both know you just want to give your adopted brother a present – Nightmare/Palette teased him with a demonic grin making them both laugh.
– Would it be alright if we started tomorrow? – Error/Goth wanting to prepare for the project.
– I don't mind as long as we're ready in time – Star said, not wanting to deviate from his plan.
– You want it ready for the day of the performance – Error/Goth checked to make sure if he was right. Nightmare confirmed his point with a nod. – Then it will be ready in time – he assured her with a smile. After they agreed on this, they continued to enjoy each other's company, leaning against each other.
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Star said goodbye sooner than necessary to Goth, who let him go with a smile. Leaving Undertone's surface behind, he opened a gate on one of the islands of Au's in the Doodle Sphere. Trying to stay out of sight of his parents, he looked around for the pieces needed for Goth's present. Using the sparks of the Doodle Sphere's magic, he brought the ribbon made in the dreamworld into reality.
