This is a multiple crossover story. The main worlds are Undertale, Homestuck, and Cave story, so it is recommended you have at least a basic understanding of those game's stories to fully enjoy this.

Here are the credits, although they include spoilers.
Dimentio belongs to Nintendo.
Misry and Balrog and the Demon Crown belong to Nicalis.
Dr. Alphys belongs to Toby Fox.
Karkat, Terezi, and all the trolls belong to Andrew Hussie.
Elmie, Elmer, King Nightmare and Queen Emrald belong to me.

I will continue to update this as the story progresses.