Characters:

Sans
Gender: male
Age: 18
Personality: shy, protective, determined
Secret Ability (exposed to them only after a massive emotional breakdown): protection forcefield
Magic ability: gaster blaster, bones, teleportation, levitation, healing

Frisk
Gender: female
Age: 16
Personality: shy, weak, target of bullies
Secret Ability (exposed to them only after a massive emotional breakdown): flight
Magic ability: X

Toriel
Gender: female
Age: 30
Personality: motherly, caring, confident
Secret Ability (exposed to them only after a massive emotional breakdown): X
Magic ability: fire

Asgore
Gender: male
Age: 36
Personality: fatherly, caring, unsure
Secret Ability (exposed to them only after a massive emotional breakdown): X
Magic ability: trident, fire

Alphys
Gender: male
Age: 17
Personality: shy, caring, helpful, stammers
Secret Ability (exposed to them only after a massive emotional breakdown): control over electronics
Magic ability: guns

Undyne
Gender: female
Age: 16
Personality: confident, kind (mostly), tough
Secret Ability (exposed to them only after a massive emotional breakdown): water
Magic ability: spears

Papyrus
Gender: male
Age: 17
Personality: kind, naïve, not popular (at first)
Secret Ability (exposed to them only after a massive emotional breakdown): trident (bone made)
Magic ability: bones

Mettaton
Gender: female
Age: 16
Personality: popular, confident, can't find someone to talk feelings (at first)
Secret Ability (exposed to them only after a massive emotional breakdown): electricity
Magic ability: transforms hands/arms to weapons

The Bullies:

Ryan-pick on Metton
Devan-pick on Frisk, leader of the bullies
Sam-pick on Papyrus
Jenny-pick on Alphys

Symbols (meaning):

//description//----thought of a person/monster
"description"----person/monster's conversation
*description----signing messages
"descrip'pun'tion"----pun in a conversation
description----important word/sentence
description----author's/my notes