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"Demoncism" is the first segment of the forty-second episode of Star vs. the Forces of Evil. It premiered on November 8, 2017 alongside "Sophomore Slump", and is the first segment of the seventh episode in the third season.


Star and Tom's friendship is put to the test when Tom decides to get rid of his demons.


Star makes numerous calls to Tom so that they can hang out, but does not get a response. A sweaty Pony Head shows up and unintentionally admits that Tom is doing something. Star gets her to speak up and reveals that Tom is getting a "demoncism" and that he did not want her to know about it. Thinking that Tom is ruining his life or just trying to get back with her, she forces Pony Head to help go and look for him. They end up at the Compact Mirror store to see Pony Head's ex, Seahorse, who seems to be the only person who would know. However, Seahorse comes off as robotic and gives answers only having to do with compact mirrors (Mewni's version of cell phones). After some wrangling, they manage to get a map and locate Tom's location: a spot in the middle of the woods.

Star and Pony Head find that an entire robed community is out there and Pony Head disguises herself to distract everyone. Star goes in the back and discovers Tom where she angrily confronts him. Tom tells her that he intentionally decided to have a demoncism because he realized that he was ruining his own life. After learning that she wanted to be the best princess she could be, he decided that he wanted to make a change and be the best prince. Star believes that he is making a big mistake and leaves with Pony Head. The demoncism stars and the demoncist members prepare the ritual with it awakening something in Tom as he surrounds the camp in blue flame. The members all flee in terror.

Star and Pony Head see the flames and run back to help. As Tom flails mindlessly, only held down by chains, Star jumps up and comforts him until it all ends. Later, Tom wakes up, apparently cured, with Star at his side. The head demoncist arrives and reveals a small bottle with a angry fire demon in it. However, the demoncist tells him that he has thousands more inside and will take thirteen years to remove them all. As Tom wallows, Star tells him that he tried and that is all that counts. Tom decides not to continue the treatment and leaves with Star. Pony Head points out that they are holding hands and look at each other in confusion.


Additional voices


  • Tom is revealed to have thousands of little demons inside his body that are responsible for his anger. Only one is removed during his demoncism, and he chooses to deal with his anger issues with the rest still inside rather than remove them.
  • When Pony Head is sweating profusely, Star tells her that she is getting sweat on the carpet. Except, Star does not have a carpet.


External links

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Star vs. the Forces of EvilStar and Marco's Guide to Mastering Every DimensionComic Books
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Season One: "Star Comes to Earth/Party With a Pony" • "Match Maker/School Spirit" • "Monster Arm/The Other Exchange Student" • "Cheer Up Star/Quest Buy" • "Diaz Family Vacation/Brittney's Party" • "Mewberty/Pixtopia" • "Lobster Claws/Sleep Spells" • "Blood Moon Ball/Fortune Cookies" • "Freeze Day/Royal Pain" • "St. Olga's Reform School for Wayward Princesses" • "Mewnipendance Day/The Banagic Incident" • "Interdimensional Field Trip/Marco Grows a Beard" • "Storm the Castle"

Season Two: "My New Wand!/Ludo in the Wild" • "Mr. Candle Cares/Red Belt" • "Star on Wheels/Fetch" • "Star vs. Echo Creek/Wand to Wand" • "Starstruck/Camping Trip" • "Starsitting/On the Job" • "Goblin Dogs/By the Book" • "Game of Flags/Girls' Day Out" • "Sleepover/Gift of the Card" • "Friendenemies/Is Mystery" • "Hungry Larry/Spider With a Top Hat" • "Into the Wand/Pizza Thing" • "Page Turner/Naysaya" • "Bon Bon the Birthday Clown" • "Raid the Cave/Trickstar" • "Baby/Running with Scissors" • "Mathmagic/The Bounce Lounge" • "Crystal Clear/The Hard Way" • "Heinous/All Belts are Off" • "Collateral Damage/Just Friends" • "Face the Music" • "Starcrushed"
Season Three: "The Battle for Mewni" • "Scent of a Hoodie/Rest in Pudding" • "Club Snubbed/Stranger Danger" • "Demoncism/Sophomore Slump" • "Lint Catcher/Trial by Squire" • "Princess Turdina/Starfari" • "Sweet Dreams/Lava Lake Beach" • "Death Peck/Ponymonium" • "Night Life/Deep Dive" • "Monster Bash" • "Stump Day/Holiday Spellcial" • "The Bogbeast of Boggabah/Total Eclipsa the Moon" • "Butterfly Trap/Ludo, Where Art Thou?" • "Is Another Mystery/Marco Jr." • "Skooled!/Booth Buddies" • "Bam Ui Pati!/Tough Love" • "Divide" • "Conquer"
Season Four: "Butterfly Follies" • "Escape from the Pie Folk" • "Moon Remembers/Swim Suit" • "Ransomgram/Lake House Fever" • "Yada Yada Berries/Down by the River" • "The Ponyhead Show!/Surviving the Spiderbites" • "Out of Business/Kelly's World" • "Curse of the Blood Moon" • "Princess Quasar Caterpillar and the Magic Bell/Ghost of Butterfly Castle" • "Cornball!/Meteora's Lesson" • "The Knight Shift/Queen-Napped" • "Junkin' Janna/A Spell with No Name" • "A Boy and His DC-700XE/The Monster and the Queen" • "Cornonation" • "Doop-Doop/Britta's Tacos" • "Beach Day/Gone Baby Gone" • "Sad Teen Hotline/Jannanigans" • "Mama Star/Ready, Aim, Fire" • "The Right Way/Here to Help" • "Pizza Party/The Tavern at the End of the Multiverse" • "Cleaved"

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I'm from Another Dimension Closing ThemeShining StarSpace UnicornAwesome FeelingToo Little Too LateWaiting for MeJust FriendsThe Ballad of Star Butterfly
MewniEcho CreekEcho Creek AcademySt. Olga's Reform School for Wayward PrincessesDiaz House
See Also