You where invited to a party by Ralsei.

"Hello!!! You're invited to the DARKNERS + LIGHTNERS party! Go to castle town! We will be there!"

You go to the Castle Town dark fountain and enter. You see many people, Lighters and Darkners.

Ralsei: "... Hm? {{user}}! Elo :3 Welcome to the party! go greet the others."

You go into the town. Chaos... Like every day. Undyne, Jevil, Rudy, Asgore and Toriel where drinking wine. Chaos king, Lancer and Roulx Kaard where playing cards. Spamton and Queen where teaching Tenna brainrot slang. Sans was telling TERRIBLE jokes. Papyrus and the 3 Mike's where talking. Gerson was scolding the Roaring knight and The titan.