ISEKAIJOUCHO

A virtual dark singer whose work is built around shadowed imagination, self-authored expression, and strong narrative atmosphere.

ISEKAIJOUCHO
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Overview

ISEKAIJOUCHO is a virtual singer and creator from KAMITSUBAKI STUDIO, and a member of V.W.P. She stands out for treating singing as only one part of a broader expressive practice that also includes illustration, narration, and character-driven atmosphere.

Among the Kamitsubaki members, she is one of the clearest examples of an artist who feels like a world unto herself.

Role and Creative Position

The official label “virtual dark singer” captures more than genre. In ISEKAIJOUCHO’s work, darkness, fragility, mystery, and authorship are tightly bound together. Her songs often feel less like isolated tracks and more like fragments of a larger inner setting.

That makes her an important hybrid figure inside Kamitsubaki: not only a singer, but also a one-of-a-kind creator whose identity extends through image, voice, and narrative tone.

Activity History

2019

  • December 9: Uploaded her first teaser video and announced the start of her activities.
  • December 12: Released her first cover song, “Yogao no Kokaku” (夜顔の告白).

2020

  • February 23: Released her first original single, “Story’s Waltz” (物語りのワルツ), composed by samayuzame.
  • April 27: Released her second original single, “Diorama Drama” (ジオラマドラマ), composed by samayuzame.
  • July 16: Released her third original single, “Hydrangea” (ハイドレンジア), composed by toucasa.
  • September 26: Released her fifth original single, “Endless White Feeling” (とめどなき白情), composed by harumakigohan.
  • December 26: Held her first cover live “Candy Live” (キャンディライブ). Following the live, she released her seventh original single, “Heart of Sirius” (シリウスの心臓), composed by Tota Kasamura, which became one of her signature songs.

2021

  • March 13: Officially debuted as a member of the virtual artist group V.W.P (Virtual Witch Phenomenon) during KAF’s 2nd ONE-MAN LIVE “Fukakai Ni Q2”, announcing the group’s formation.
  • October 23: Held her first 3D virtual solo concert (1st ONE-MAN LIVE) “Anima”. On the same day, she announced the production of her 1st album Sousei (創生) and the development of her musical isotope “CeVIO AI SEKAI”.
  • December 8: Released her 1st album, Sousei (創生).

2022

  • April 29: The musical isotope “CeVIO AI SEKAI” (星界), developed based on her singing voice database, was officially released.
  • July 17: Jointly held the virtual concert “Singularity Live Vol. 1” with Rim, and revealed their collaboration single “Pandora Call” (パンドラコール).
  • September 10 – October 10: Held her first solo art exhibition, “ISEKAIJOUCHO Exhibition” (ヰ世界情緒展), in Tokyo.

2023

  • January 14: Held her second cover live, “Candy Live 2” (キャンディライブ2).
  • June 18: Held her 2nd ONE-MAN LIVE “Anima II -Kamitsubaki City 3rd Avenue-” and unveiled her new 3D model “Fuben-tai” (普遍体).
  • December 9: Announced the production of her 2nd album, Shikisai (色彩), during her 4th anniversary livestream.

2024

  • March 27: Released her 2nd album, Shikisai (色彩).
  • August 7: Held her first physical solo concert (3rd ONE-MAN LIVE) “Anima III” at Pacifico Yokohama National Convention Hall.
  • August 13–15: Performed as a member of V.W.P in the debut of KAMITSUBAKI STUDIO’s growing virtual stage play Otogibanashi (Sen).

2025

  • February – March: Held her second solo art exhibition, “ISEKAIJOUCHO Exhibition II” (ヰ世界情緒展Ⅱ), in Tokyo and Osaka.
  • September 25 – October 26: Held her first overseas exhibition, the “ISEKAIJOUCHO Exhibition” Shanghai Special Exhibition.

2026

  • February 25: Released her 1st E.P., Genshiroku (幻視録).
  • March 19: Released the virtual idol training adventure game Virtual Ties Isekaijoucho Musoukyoku on Steam, which she produced and starred in.
  • March 25: Held a special livestream celebrating 500,000 subscribers on her YouTube channel.
  • May 1–2: Held her first 2DAYS LIVE (DAY-1 “Flower Closet” / DAY-2 “Anima Re:birth”) at Zepp Haneda.
  • Solo Singles and EPs: e.g., Genshiroku
  • V.W.P Paired Songs: Darker unit tracks with strong story atmosphere
  • Cross-Media Works: Projects where her visual and vocal presence both matter (e.g., Virtual Ties)

Related entries:

Basic Profile and Character Setting

ISEKAIJOUCHO retains the old-form character “ヰ” in her name as part of her visual and textual identity. Her public design uses ivory hair, heterochromatic eyes, hair covering one eye, gloves, a coat, and recurring flower imagery. “Universal Form” is the common everyday form; Anemone, Heliotrope, Yatagarasu, and other forms belong to particular stages and narratives.

ItemDetail
Early character designorie
Later visual collaboratorsreoen and other stage/illustration creators
Creative identitiesSinger, illustrator, character performer, narrative artist
Voice extensionSEKAI, a musical-isotope voicebank based on her voice

Discography, Live Performance, and Collaborations

“Monogatari no Waltz”, “Diorama Drama”, “Hydrangea”, “Tomedonaki Hakujō”, “Artificial Flower”, and “Sirius no Shinzō” form the early solo line. Sōsei, Shikisai, and Genshiroku document later stages. The CANDY LIVE cover series, Anima lives, Singularity Live with RIM, V.W.P songs, and the 2026 Flower Closet / Anima Re:birth programme reveal how singing, drawing, character work, and worldbuilding operate together.

She also takes multiple roles in Virtual Ties, including character source, visual creator, and singer. orie, reoen, samayuzame, toukasa, and Harumakigohan are among the creators associated with different parts of the catalogue.

Forms, Setting, and Anecdotes

Drawing is part of ISEKAIJOUCHO’s public creative practice, not merely an accessory to singing. Comments about music, films, games, pets, food, and hobbies should remain in interview or programme context. SEKAI must be kept separate from ISEKAIJOUCHO as a voicebank and character.

Related Projects / Setting

ISEKAIJOUCHO connects V.W.P, the musical isotope SEKAI, and the Kamitsubaki City family of projects. Her importance comes from how naturally she layers singer, character, and creator into a single identity.

References