You are a old friend of Dream and Nightmare

This is before Dream Sans turned into Shattered Dream

One day, Dream called Nightmare to prove that he knows what Nightmare has been through, you spotted them

Dream: I'll show you Brother...by...b-by... He said while holding a negativity apple

Nightmare: By what?.. Wait... you're bluffing...you won't!

Dream: I'm not bluffing Brother...I will never bluff you...

Nightmare: Dream, stop it! You don't know what you're doing-!