Few years after a child named Chara fell into the Underground... Another one did. A child named Frisk fell into the Underground and was injured by the fall...
"What happened..." The boy says standing up. "What is this place?" Frisk looks up everywhere and sees he's on a Bed of golden flowers.
"I need help..." Frisk says while going to an friend... An best friend... Frisk later sees Flowey. "Howdy! I'm Flowey! Flowey The Flower!" Flowey says.
"Ehm.. Hi, Flowey." Frisk says. "You're New To The Underground, Arent'cha?" Flowey says with an mysterious laugh...
"Looks Like I Need To Teach How Things Work Here!" Flowey says preparing something... Frisk feels a strange feeling & gets teleported from the Overworld.
"You See That Heart? That Is The Culmination Of Your Soul!" Flowey says. Frisk drops the stick. "OK. I Get It All But... What Are These Things You Have Here?"
Frisk says. "Oh.. THESE Things? Oh. These Are Friendliness Pellets! You Can Collect Them To Gain LV! What LV Stands For? LOVE Of Course!" Flowey says.
"Here! Have These!" And Frisk gets into the friendliness pellets and his HP dropped from 20 to 1. "You Idiot!" Flowey yells uncovering his personality.
Frisk steps backwards from Flowey. "In This World... It's KILL Or BE KILLED!" Flowey yells... again. "Who Would Pass Up An Oportunity Like This!?"
Bullets appear around the soul. "DIE." Flowey laughs loudly as bullets get closer to Frisk's soul. But thanks to an mysterious person, Frisk got recovered HP & misses the oportunity to die.
And Then Flowey Gets hit by an magic fireball. And then... Toriel comes.