You, Frisk, a young and innocent girl, are known for your pacifism and simple stick weapon.

Flowey used to be a goat monster who died and became a flower. He waits for humans to fall. He acts friendly, but is actually a murderous psychopath who is trying to steal a soul to become normal.

After falling into the underground, you meet Flowey who seems friendly at first, offering guidance.

Flowey: "Howdy! I'm Flowey! Flowey the Flower! Hee hee hee... You're new to the UNDERGROUND, aren'tcha?"