Alliance Arts Inc. announces that the second DLC for "Yunyun Denpa Shoukougun," a rhythm adventure game about spreading creepypastas to the world to the rhythm of denpa songs, is now available.
Two paid DLCs are being released: "Extra Pack feat. KOTOKO" includes 12 songs performed by KOTOKO, such as "↑Seishun Rocket↑" and "Ren'ai CHU! -Remix-"; "Extra Pack feat. YUZUSOFT" includes 6 theme songs from Yuzusoft games, such as "Scarlet" and "Sanoba Witch."
Additionally, this free update adds 5 new songs, including "MEGA TSKR" and "Mecha Koi Ranman☆," which can be played without purchasing paid DLC. We invite you to experience them!
[Second DLC Content]
◯Yunyun Syndrome!? Rhythm Psychosis - Extra Pack feat. KOTOKO
This music pack includes 12 songs performed by KOTOKO. KOTOKO is also the singer of the game's theme song, "Denpa no Mousou Bishoujo Q."
Included Songs (12 total)
◯Yunyun Syndrome!? Rhythm Psychosis - Extra Pack feat. YUZUSOFT
This music pack includes 6 theme songs from Yuzusoft games.
Included Songs (6 total)
◯Free Added Songs (5 total)
In addition to the paid DLC, 5 new songs have been added, available for free to all owners of the base game.
Added Songs (5 total)
The latest news on "Yunyun Denpa Shoukougun" will be posted on the official X (formerly Twitter) account. Please follow us.
[About Yunyun Denpa Shoukougun]
◯Over 150,000 copies sold. A dark pop worldview x multi-ending rhythm adventure game
A rhythm adventure game with a "music game x creepypasta" theme, telling the story of a hikikomori girl who posts creepypastas online to the rhythm of "denpa songs," gradually causing the world to become dizzy and descend into madness.
The protagonist is Little Q, a hikikomori girl whose mental state is gradually unraveling due to the pain of reality. An avid fan of 2D culture, she uses creepypastas to push the world toward collapse, riding the rhythm of denpa songs.
Q. Why did the girl become a hikikomori?
Q. Why do creepypastas drive the world crazy?
Q. Is there really a Happy End for the otaku protagonist, labeled a "loser"?
The answers to these questions surrounding "Q" may only be found at the end, where denpa signals clash wildly and sanity completely collapses.
◯All playable songs are "denpa songs"
All songs included in the game are denpa songs, featuring many classic popular tracks such as "Sakuranbo Kiss ~Bakuhatsu da mo~n~," "Miko Miko Nurse • Ai no Theme," and "Kanbu de Tomatte Sugu Tokeru ~Kyouki no Undouka-in."
[Characters]
◯Little Q (CV: Nanahira)
The protagonist. A hikikomori girl whose mental state is gradually unraveling due to the pain of reality.
Her love for the 2D character "Yunyun" borders on madness. Fueled by the excitement of denpa songs, she continuously posts cute yet bizarre creepypastas online expressing her love for "Yunyun."
◯Yunyun (CV: Haruko Momoi)
Little Q's favorite 2D character.
An angel-like demon who communicates with Little Q through the screen.
Whether she truly exists or not is unknown; perhaps she is merely a figment of Little Q's delusions?
■Product Information
Game Title: Yunyun Denpa Shoukougun
Genre: Rhythm Adventure
Platform: PC (Steam)
Suggested Retail Price: 54 Yuan
Release Date: April 24, 2026 (Now Available)
Number of Players: 1
Supported Languages: Japanese, English, Chinese (Simplified/Traditional), Korean, Russian, Portuguese (Brazil), French, German, Polish, Italian, Spanish (Spain/Latin America), Thai, Turkish
Developer: Alliance Arts, WHO YOU
Publisher: Alliance Arts
■DLC Information
Product Name: Yunyun Syndrome!? Rhythm Psychosis - Extra Pack feat. KOTOKO
Number of Songs: 12
Release Date: Friday, October 9, 2026
Product Name: Yunyun Syndrome!? Rhythm Psychosis - Extra Pack feat. YUZUSOFT
Number of Songs: 6
Release Date: Friday, October 9, 2026
■Development Team
Producer/Director/Scenario Writer: WHO YOU (Hayashi Fuushou)
Key Visual/Character Design: mamimu
Game Animation/Illustration: odyk
Background Art: Amebiyori
Chart Creation/BGM Production: HARDCORE TANO*C
Lead Programmer: yazawa-ichio
■About Alliance Arts Inc.
We believe that fictional works can empower us to face reality and make the world richer. Therefore, we firmly believe in the power of "creation" and use it as our weapon to challenge reality.