Prologue

One day, Nightmare sans, the king of negativity, mysteriously turns back into his old form. He decides to hide his new form from his gang, and especially Dream. Going by the name Moonlight, his old nickname, he conceals himself as a new member of the bad sanses. But as suspicions arise, Nightmare may have to reveal himself, or lose all the trust he has built up over the years.

...

Okay, just saying, I was bored, and I just had this idea, so here you go.
None of these characters belong to me they all belong to their respected creators.
Anyways, enjoy, I guess.

Warning!

Ships

Slight blood/Injuries