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Visual Novel / Riddle Joker

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The main heroines, clockwise from the top-left: Mayu, Ayase, Hazuki, and Nanami
For decades, superpowers and psychic abilities were thought to be mere science fiction, but the discovery of a certain particle called the "Astron" at the end of the 20th century proved to the world that these wondrous phenomena were real. Nowadays, these abilities have been dubbed "astral abilities," with those who can wield them being knows as "Astrals."

Arihara Satoru is but an ordinary person living in this futuristic world.

However, beneath that guise, he's actually a secret agent working for an organization that uses Astrals.

One day, he receives a new mission:

Pose as a student and infiltrate a famous academy for Astrals.

After successfully transferring into the academy together with his sister Arihara Nanami, he settles into his new life there, meeting new friends like his classmates Mitsukasa Ayase and Nijouin Hazuki, and his upperclassman Shikibe Mayu, among others.

Until an unfortunate accident leads to Mitsukasa Ayase finding out his true identity! And in that situation, he also learns that she has her own big secret...

Riddle Joker is Visual Novel published on April 27th 2018 by Yuzusoft, the same company behind Dracu-Riot!, Sabbat of the Witch and Senren Banka. An English version was released on Steam by Nekonyan on December 18th 2020.


Riddle Joker contains examples of the following tropes:

  • Art Shift: As is typical in Yuzusoft games, humorous events usually depict the characters in a chibi style.
  • Bland-Name Product: Ayase likes to watch cute cat videos on YouPipe
  • Brilliant, but Lazy: Satoru is called this early on by one of his teachers, remarking he can be incredibly intelligent whenever he actually applies himself.
  • Bridal Carry:
    • Satoru gives one to Hazuki during her route, catching her after her power accidentally causes a miniature tsunami at the pool. As both of them are in their swimsuits, Hazuki ends up incredibly embarrassed.
    • Happens to Ayase towards the end of her route, when Satoru saves her from one of Kaori's attacks
  • The Cameo: There are several cameos and references to other Yuzusoft properties:
    • Satoru has a Senren Banka poster in his room.
    • Yoshino can be spotted in the background of the train station.
    • Similarly, Touko can be seen in the town CG during the prologue
    • Advertisement:
    • Tsumugi and Rio can be seen next to each other outside the mall.
    • Suga Hideto, a minor character, has posters of both Sabbat of the Witch and Tenshin Ranman on his wall, as well as several figurines, including one of Tsumugi in her witch outfit on his dresser.
    • In Nanami's route, during her sleepover with Chisaki, a book featuring the tarot illustration of Nene can be seen laying on the bed.
  • Cool Big Sis: Mayu is the oldest member of Satoru's circle of friends, and she often refers to herself as "Onee-san"
  • Gamer Chick: Ayase is quite fond of video games, and she bonds with Satoru while playing them during her route.
  • Love Letter: Satoru receives one from Hazuki during her route, written in a humorously formal tone:
    Satoru: It feels like I received some letter from a girl who lived in the Edo period...
  • Nervous Wreck: Nanami becomes one during her route after realizing the full extent of her love for Satoru. Likewise, after Satoru comes to the same realization during her route, the two become stuttering messes when they greet each other the next morning:
    Satoru: Moningg!
    Nanami: Orning, Shatoru-Kun!
  • Playing Card Motifs: The eye catches during the loading screens for each heroine's route features these with their own Ace and Joker versions:
    • Ayase: Spades.
    • Hazuki: Clubs.
    • Mayu: Diamonds.
    • Nanami and Chisaki: Hearts.
  • Shrinking Violet: Nanami is quite shy. One of her biggest worries with transferring to Kikka Academy is the prospect of introducing herself to the class, remarking she feels sick at the thought of doing so.
  • Thinking Out Loud: During Ayase's route, both her and Satoru accidentally mumble about their feelings for each other
  • Wall Pin of Love: Satoru gives one to Hazuki during her route after deciding to accept her love confession
    • Satoru also performs one with Mayu during her route.


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