This article is about a/an episode in Kamen Rider Den-O.

Get Out, Oni! I am Serious (鬼は外!僕はマジ Oni wa Soto! Boku wa Maji) is the fourth episode of Kamen Rider Den-O. Urataros makes a brief appearance in this episode.


Angry with Momotaros for using his body for the sake of money, Ryotaro decides to handle helping Yamagoshi without summoning the Imagin for help!


Ryotaro, furious that Momotaros had involved him in a robbery, decides to stop asking for the Imagin's help in battles. Later, the Chameleon Imagin shows up at Yamagoshi's apartment, leaving the young man large amounts of money that the Imagin had stole on his own.

This completes the contract Yamagoshi had made with the Imagin, allowing him to travel back in time to the day that Yamagoshi had given up his chances to have a career in music and helped a young girl, instead. When Ryotaro travels to the past to battle the Chameleon Imagin, he soon discovers that he cannot defeat Chameleon Imagin.

He realizes that he needs Momotaros' assistance, but only if Momotaros apologizes for his actions in endangering him. Momotaros begrudgingly apologizes, and Den-O is able to destroy Chameleon Imagin with an Extreme Slash.


  • Den-O: Plat Form, Sword Form


Guest Cast

Suit actors


  • As part of Super Hero Time, this episode aired alongside the first episode of Juken Sentai GekirangerIcon-crosswiki, Niki-Niki! Fierce Beast-FistIcon-crosswiki.
  • Viewership: 7.1%
  • Technically, this is Ryotaro's second fight in Plat Form, but the first to fight seriously without Momotaros.
  • The title is a play on the expression "Oni wa Soto, Fuku wa Uchi", stated usually during the holiday of Setsubun to chase out the bad luck (the Oni) and bring in good luck for a new year.

DVD releases

Kamen Rider Den-O Volume 1

Kamen Rider Den-O Volume 1, DVD cover

Kamen Rider Den-O Volume 1 features episodes 1-4: I Have Arrived!, Ride on Time, Outlaw Momotarō and Get Out, Oni! I am Serious.

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Kamen Rider Den-O Box 1, Blu-ray cover

Blu-ray Box 1 comes with 18 episodes.

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