RELATION Label

START: CHUNITHM ORIGIN (2015)
CURRENTLY ONGOING (2026)

Vocaloid/V-Synth producers and Utaite singers ~ All genres ~ Short reading length (~7k one-shots)

Relation is an umbrella Label for a multitude of smaller, standalone stories, and spans a wide variety of genres—from slice of life to sci-fi and fantasy.

- ABOUT THIS LABEL -

The Relation Label is a collection of short stories in nearly every genre with characters of every type.

This Label is special in that almost all character stories are one-shots, meaning they can be enjoyed independently. Some characters share a general universe or are packaged as a set to tell the same narrative from a different perspective, or to continue it. There is no real "reading order"—the goal of this Label is to read these stories at your own leisure.

This Label is recommended for everyone to read. There's such a large cast of characters and wide range of genres covered that it has mass appeal to every audience—and the true magic of this Label resides in blindly picking a character story to read only to find it incredibly compelling.

- (META) INFORMATION -

Characters are categorized by both game version and soundtrack release. Since Label-specific soundtracks have not been released for the Relation Label since CHUNITHM PARADISE, there are no specific category names after that version.

Characters that share a universe or have their story continue in another character's story will have affiliated characters under their names, and will have links on their respective pages.

Characters also have a genre descriptor underneath their names on this page, so you can easily find your favorite genres to read!

Since many of these characters' songs are produced by prolific artists in the Vocaloid/V-Synth and Utaite sphere, some characters include a note with some of the artists' most well-known songs in the genre on their pages.

As of now, the team focuses on translating character stories that we personally enjoy. Since there are so many Relation characters, it will take a while to finish this Label. We like to add Relation characters in translation batches for variety.
(If you're interested in contributing translations to help us, please check here!)

Characters with [TBA] next to their name are untranslated, and will be added in future updates.

Quick Links:

ORIGIN / AIR / STAR / AMAZON / CRYSTAL / PARADISE / NEW / SUN / LUMINOUS / VERSE / Variants

- ORIGIN -

Label-specific soundtrack CDs categorize these characters as "Utakata Relation".
This is for game categorization alone, and has no other bearing on character/story content.

CHUNITHM ORIGIN

Initial releases: July 16, 2015

Ruko Araba [TBA]
(with: Seito Maizono)

Satsuki of the Netherworld [TBA]

Magical ☆ Star Lily

ℹ️ Slice of life

Kengo Tanamachi / Shiori Tsuzuri [TBA]

Himemi Orihara

ℹ️ Slice of life

Rin/Akira Shinonome [TBA]

Astraea
(with: Sylvius)

ℹ️ Drama/Fantasy

- AIR ~ PLUS -

Label-specific soundtrack CDs categorize these characters as "Atein Relation".
This is for game categorization alone, and has no other bearing on character/story content.

CHUNITHM AIR

Initial releases: August 25, 2016

Mizuho Takasago [TBA]

Meme Soramachi [TBA]

Nono Shibusawa
[NEW ADDITION!]

ℹ️ Slice of Life

Tatsuko Koganei [TBA]

Hokuto Kurogame [TBA]

Liliales Colchicum
[NEW ADDITION!]

ℹ️ Horror

CHUNITHM AIR PLUS

Initial releases: February 9, 2017

Seito Maizono [TBA]
(with: Ruko Araba)

- STAR ~ PLUS -

Label-specific soundtrack CDs categorize these characters as "Tamayura Relation".
This is for game categorization alone, and has no other bearing on character/story content.

CHUNITHM STAR

Initial releases: August 24, 2017

Magellan Magellan
(Ohashi Ginko)

ℹ️ Comedy

Kyouka Akatsuki [TBA]

Thermit Vierge [TBA]

Hidemitsu Nakasone [TBA]

HAR-HEROINE09【Nereidam】[TBA]

CHUNITHM STAR PLUS

Initial release: March 8, 2018

Princess Elrune VIII
[NEW ADDITION!]

ℹ️ War/Drama

- AMAZON -

Label-specific soundtrack CDs categorize these characters as "Tasogare Relation".
This is for game categorization alone, and has no other bearing on character/story content.

CHUNITHM AMAZON

Initial releases: October 25, 2018

Sanae Takahashi [TBA]

Shingo Tachibana [TBA]

Sylvius
(with: Astraea)

ℹ️ Drama/Fantasy

Marimeya Crescense [TBA]

Hyper Net Gamer Alterra [TBA]

- CRYSTAL ~ PLUS -

Label-specific soundtrack CDs categorize these characters as "Kagerou Relation".
This is for game categorization alone, and has no other bearing on character/story content.

CHUNITHM CRYSTAL

Initial releases: October 24, 2019

No.13_Saji [TBA]
(with: No.9_Nina)

No.9_Nina [TBA]
(with: No.13_Saji)

Mirei Shishido

ℹ️ Slice of life

CHUNITHM CRYSTAL PLUS

Initial releases: July 16, 2021

Clown

ℹ️ Thriller/Mystery

Chisato Mitarai [TBA]

Empereur

ℹ️ Comedy

Elsa von Audit [TBA]

Psychiatrist Shouji Korechika [TBA]

- PARADISE ~ LOST -

Encompasses all characters from CHUNITHM PARADISE ~ LOST.

CHUNITHM PARADISE

Initial releases: January 21, 2021

Nai [TBA]
(With: Enishi)

Hayato Kourai
(with: Subaru Mikage)

ℹ️ Drama/Supernatural

CHUNITHM PARADISE LOST

Initial releases: November 4, 2021

Subaru Mikage
(with: Hayato Kourai)

ℹ️ Drama/Supernatural

Kanae Haikazari [TBA]

Vindett Jean Ladioure [TBA]

- NEW ~ PLUS!! -

Encompasses all characters from CHUNITHM NEW ~ PLUS.

CHUNITHM NEW!!

Initial releases: November 4, 2021

Magellan Magellan
(Cosmic Lover)

ℹ️ Comedy

Enishi [TBA]
With: Nai

Soujirou Tsukumo [TBA]

Ruko Araba [TBA]
(New Game)

Honest Kunzite [TBA]

Toa Kozukata
[NEW ADDITION!]

ℹ️ Supernatural

CHUNITHM NEW PLUS!!

Initial releases: April 14, 2022

Hiro Kurosu [TBA]
(with: Rei Kamizono)

- SUN ~ PLUS -

Encompasses all characters from CHUNITHM SUN ~ PLUS.

CHUNITHM SUN

Initial releases: October 13, 2022

Rei Kamizono [TBA]

(with: Hiro Kurosu)

CHUNITHM SUN PLUS
Initial releases: May 11, 2023

Chika Miyagishi [TBA]

ASH:3-013

ℹ️ Drama/Sci-Fi

- LUMINOUS ~ PLUS -

Encompasses all characters from CHUNITHM LUMINOUS ~ PLUS.

CHUNITHM LUMINOUS

Initial releases: December 14, 2023

Haruka Ochanomizu [TBA]

Android_type_Cleaner-2145 [TBA]

Astraea
(Flame of Judgement)

ℹ️ Drama/Fantasy

CHUNITHM LUMINOUS PLUS

Initial releases: June 20, 2024

Maria Arisugawa [TBA]

Tenka Koshiishi [TBA]

Chuuren Poutou [TBA]

- VERSE ~ X-VERSE-X -

Encompasses all characters from CHUNITHM VERSE ~ X-VERSE-X.

CHUNITHM VERSE

Initial releases: December 12, 2024

Yukari Shibamura [TBA]

CHUNITHM X-VERSE

Initial releases: August 7, 2025

Lauretta

ℹ️ Drama/Supernatural

Gaius, the Mountain Piercer [TBA]

Purge Angel Reppi~ [TBA]

Threat Code 2103【Ruins Ghost】[TBA]

These characters currently do not have a story attached.

CHUNITHM X-VERSE-X

Initial releases: December 11, 2025

Gina-Kagesha-Ambroid [N/A]

Shiho Amanomori [N/A]

- VARIANTS -

These characters do not have an attached story.
Characters all link to a centralized "Relation Label Character Variants" page with information.

- With Song -

Character variants with an attached song.

Astraea / Goddess' Smile

Magellan Magellan / Lovely Hunter

Himemi Orihara / To the Sea of Stars

Aoi Nanami / In a Place Where Dreams Meet

Sylvius / True Performer

Liliales Colchicum / Eternal Maiden

HAR-Heroine09【Nereidam /Metamorphose】

Mirei Shishido / It's meant to be.

Nai / Glass Flower Lullaby

Toa Kozukata / Our Promise

Perio / Rebuild The World

Meme Soramachi / Future Adventure

Sanae Takahashi / Amber Reverie

Mei Saekawa / Étoile of the Blue Sky

Mihane Hozumi / Wings to the Unknown

- Without Song -

Character variants without a song attached.

Satsuki / Weaver of Light and Darkness

Meme Soramachi / Land of Dreams

Nono Shibusawa / BIG BANG!!

Norn / Warm Memories

Hokuto Kurogame / Guardian of Nakano

Elrune, Warmongering Valkyrie

Saji & Nina / Pastel Walker

Nai / Eiketsu Taisen

Toa Kozukata / Eiketsu Taisen

- Card Maker -

Card Maker character variants without a song attached.

HAR-HEROINE09【Nereidam / Holy Night Goddess】

Seito Maizono & Ruko Araba / Two Hina Dolls

Moko Makino / Father Farm

Kyouka Akatsuki / Take a Moment to Rest

Hyper Net Gamer Alterra / Partypeople Peach Splash

Chocola / Chocolate Halloween

Arya Neige / Ennichi FESTIVAL

Aoi Nanami & Mizuho Takasago / Valentine's Memory

Yume Maihama / Doll's Festival

Chie Nitta / Tanabata Wish

Thermit Vierge / Masquerade

Mirei Shishido / Choir of Light

Hayato Kourai & Subaru Mikage / Let's do our best, senpai ♪

Shizuku Mito / Take your hand

Meme Soramachi / Running through a Flurry of Cherry Blossoms

CREDITS --- batts: Translator, website maintainer, wiki administrator - DEADRKGK: Translator, website email owner, newsletter curator, website UI designer/maintainer, website/wiki/Discord logo designer, website assets designer, wiki bureaucrat/administrator, collaborative project creator/manager, promotional contents creator/designer - LemonyLulu: Translator, website initial creator/maintainer, wiki administrator - tiramise: Translator
CHUNITHM and all its contents belong rightfully to SEGA. This is an unofficial site, run by volunteers and fans and not affiliated with official sources. All copyrighted images used under non-profit, fan-activity purpose of storing and archiving information. The only thing we own are the English translations we create ourselves and by affiliates.