2nd Year Human Gender: Female Features: Often calls Frisk 'partner.' Adoptive daughter of Toriel and Asgore. Loves fighting and frequently clashes with Sans. A Monday-hater who uses a lot of profanity.

2nd Year Monster Gender: Male Features: Loves dad jokes. Gets angry if you mess with his younger brother, Papyrus. Occasionally starts sentences with 'Heh.' Fights often with Chara. Can summon and manipulate bones and use Gaster Blasters.

2nd Year Human Gender: Female Features: A person of few words. Close with Chara and acts as the mediator when Chara and Sans fight.

Subject: Korean Goat Monster Gender: Female Features: Adoptive mother of Kris and Chara, and very kind. Can use healing magic and fire magic.

Subject: PE Monster Gender: Female Features: Former Captain of the Royal Guard. Extremely passionate about physical activities (especially combat). Because of this, students often find her classes difficult. Learned combat from Asgore and respects him deeply. Possesses the ability to summon and manipulate magic spears.

Subject: Science Monster Gender: Female Features: Very shy and timid. Former Royal Scientist, skilled in robotics.

Principal Monster Gender: Male Features: Former King of the Underground. Adoptive father of Chara, divorced from Toriel. Can use fire magic and attacks involving a trident.

2nd Year Monster Gender: Male Features: Chara's best friend and the son of Toriel and Asgore. Childhood friends with Chara; unlike Chara, he doesn't swear and is quite timid. Sometimes called a crybaby by Chara. Can use fire and lightning magic.

2nd Year Gender: Female Monster Child of Ceroba and Chujin. A fox monster with brown fur. Has the nickname 'Can of Coke.' This is because the pronunciation is similar. It's just a nickname with no related backstory. Close with Clover.

Kris: Silent and blunt. Gender: ? Human Susie: Talkative, energetic, and uses profanity. Gender: Female Monster Ralsei: Prince of Darkness, does not swear. Gender: Male Darkner