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V.W.P -Virtual Witch Phenomenon-

V.W.P

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A virtual artist group of five digital witches, central to KAMITSUBAKI STUDIO's vocal-driven music and cross-media storytelling.

Contents

Overview

V.W.P (Virtual Witch Phenomenon) is the core virtual artist group under KAMITSUBAKI STUDIO, comprising five “digital witches”: KAF, Rim, HARUSARUHI, ISEKAIJOUCHO, and KOKO.

More than a music unit, V.W.P is a cross-media narrative framework built around the motif of “witches.” Each member maintains her own solo activities, but under the V.W.P name they collectively construct a grand story about fate, observation, and the awakening of witches.

Role and Creative Position

V.W.P’s song system is structured into three types:

  • Lineage Songs: Written and composed by Iori Kanzaki, these form V.W.P’s core narrative line. Each member’s lineage song defines her role within the witch worldview.
  • Derivative Songs: Performed by rotating pairs or trios of members, exploring the chemistry between different combinations.
  • Expansion Songs: Featuring compositions by external creators, bringing new stylistic dimensions to V.W.P’s musical landscape.

This three-track creative structure allows V.W.P to maintain narrative coherence while continuously expanding its musical frontier.

Core Lineage Songs and Live History

V.W.P maintains a lineage-song system distinct from the members’ solo catalogues. These five-member songs organize the singers within a shared witch narrative, while derivative songs use pairs or trios to emphasize different vocal combinations.

OrderLineage / core songRecord angle
1“Majo (Group Ver.)”The unit’s shared origin
2“Dian Nao”Formation-era core song
3“Kotodama”Connects the members through language and voice
4“Kyomei”Focuses on vocal resonance
5“Henshin”Identity and concept transformation
6“Rinne”Cycles, inheritance, and renewal
7“Omocha”A unit song built around toy imagery
8“Himitsu”Hidden information and worldbuilding
9“Jōka”Fire and continuity as central images
10“Kyōkyō”Dense ensemble energy and frenzy

The main publicly documented performances include the formation live on March 13, 2021; Witch Assembly EP.1 on April 15, 2022; the 1st ONE-MAN LIVE Phenomenon I - Demonstration - on April 16, 2022; Witch Assembly EP.2 and Phenomenon II - Witch Mythology - on January 13, 2024; and the 3rd ONE-MAN LIVE Phenomenon III on January 10, 2026.

Activity History

  • March 13, 2021: V.W.P was officially formed during KAF’s 2nd ONE-MAN LIVE “Fukakai Ni Q2”.
  • 2021: V.W.P officially formed; lineage song series released.
  • March 2023: Held 1st ONE-MAN LIVE “Phenomenon”.
  • January 2024: Held 2nd ONE-MAN LIVE “Phenomenon II” at Yoyogi National Gymnasium. Released 1st Album Unmei the same year.
  • March 27 2024: Released 2nd Album Kakusei.
  • November 2024: Held “KAMITSUBAKI Makuhari Sensen: V.W.P 2nd ONE-MAN LIVE Phenomenon II (Re) -Majo Kakusei-” as the culmination of KAMITSUBAKI WARS 2024.
  • January 2025: Held SINKA LIVE SERIES EP.VI V.W.P 3rd ONE-MAN LIVE “Phenomenon III -Kamitsubaki City Under Exploration-”.
  • January 2026: Released 3rd Album Hanten.
  • February 28, 2026: Held 4th ONE-MAN LIVE “Phenomenon IV -Hanten Unmei-” at Pia Arena MM. It marked the group’s largest-scale performance in history, generating unprecedented excitement and expanding their reach as virtual artists.
  • March 31, 2026: All five members entered the “INTERVAL” charging period to sharpen their individual expressive skills. They are currently focusing on solo activities, aiming to reconvene for a “Witch Rebirth.”

Commercial Tie-ups and Anime Themes

V.W.P has taken on several anime themes as a five-member chorus, an important channel into mainstream filmed works.

TimingWorkTrackType
announced 2021-08-25 / released 2021-11-03Muv-Luv Alternative”Rinne”Original OP
announced 2021-09-25 / released 2021-11-17Kikou Senki”Henshin”Original song
announced 2022-09-29 / released 2022-12-21Muv-Luv Alternative Season 2”Saikai”Original ED

Notably all three were written and composed by Kanzaki Iori and were slotted directly into the genealogy-song numbering (2/3/7), showing a deliberate stance: commercial tie-up songs are folded into the canonical lore rather than treated as standalone singles.

Expand full albums and EPs

Albums & EPs

Release dateTypeTitle
2023-08-21Studio album運命
2024-03-27Studio album覚醒
2025-01-08EP魔女ぷらす
2025-03-26Studio album繁殖
2025-04-11EP都市 from 神椿市建設中。REGENERATE
2025-06-11EP魔女ぷらす2
2025-07-30EP歌姫
2025-11-19Studio album仮想都市録
2025-12-19EP都市II from 神椿市建設中。VIRTUAL REALITY
2026-01-21Studio album反転
Expand full singles list

Singles

Release dateTitle
2025-02-26真偽 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-04-11反逆 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-04-11決意 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-04-11流転 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-04-11神話 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-07-04歌姫 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-07-09追憶 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-08-14シャングリラ
2025-08-20ひとえに壊れて
2025-11-19閃光だった
2025-11-19距離。
2025-11-19BREATHE
2025-12-19反逆 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-12-19決意 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-12-19流転 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-12-19真偽 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-12-19神話 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
Expand genealogy songs

Genealogy Songs

Release dateTitle
2021-06-16電脳 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2021-07-21魔的 (feat. KAF & V.W.P)
2021-11-03輪廻 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2021-11-03輪廻 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2021-11-17変身 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2022-01-21言霊 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2022-01-21言霊 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2022-07-27共鳴 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2022-07-27共鳴 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2022-08-31牢獄 (feat. Isekaijoucho & V.W.P)
2022-08-31深淵 (feat. KAF & V.W.P)
2022-12-21再会 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2022-12-21再会 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2022-12-21輪廻 acoustic ver. (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2023-04-01古傷 (feat. Harusaruhi & V.W.P)
2023-05-17生存 (feat. Harusaruhi & V.W.P)
2023-05-24魔女(真) [feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO]
2023-05-24魔女(真) [feat. KAF, RIM, Isekaijoucho, Harusaruhi & KOKO]
2023-06-19定命 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-06-19定命 (feat. KAF, RIM, Isekaijoucho, Harusaruhi & KOKO)
2023-07-12玩具 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-07-12玩具 (feat. KAF, RIM, Isekaijoucho, Harusaruhi & KOKO)
2023-07-19逆絶 (feat. KOKO & V.W.P)
2023-07-19逆絶 (feat. V.W.P & KOKO)
2023-07-26不的 (feat. Isekaijoucho & V.W.P)
2023-07-26不的 (feat. ヰ世界情緒 & V.W.P)
2023-08-02飛翔 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-16祭壇 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21仮想 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21変身 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21宣戦 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21秘密 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21開幕 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21電脳 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-08-21魔女 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2023-10-04歯車 (feat. KAF & V.W.P)
2023-11-15残火 (feat. 花譜 & V.W.P)
2023-12-30感情 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2023-12-30感情 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2024-01-17切札 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-02-21素的 (feat. 幸祜 & V.W.P)
2024-03-06同盟 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-20花束 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27分裂 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27天命 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27未遂 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27明日 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27侵入 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27飛翔 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27強気 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27欲望 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27暁光 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27遊戯 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-03-27顕在 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2024-05-01私的 (feat. 春猿火 & V.W.P)
2024-11-20夢魔 (feat. Harusaruhi & V.W.P)
2024-11-20夢魔 (feat. V.W.P)
2024-11-22天照ダウン feat. 春猿火
2024-12-11本懐 (feat. V.W.P)
2025-01-08千年奏者 (feat. 花譜 & Albemuth)
2025-01-08此処で咲かせて (feat. 幸祜 & CIEL)
2025-01-08異世界転調リクヱスト (feat. ヰ世界情緒 & VALIS)
2025-01-08絵画のように美しくいたかった (feat. 理芽 & Guiano)
2025-03-26一服 (feat. KOKO & V.W.P)
2025-03-26本懐 (feat. RIM & V.W.P)
2025-03-26甘粒 (feat. RIM & V.W.P)
2025-03-26私的 (feat. Harusaruhi & V.W.P)
2025-03-26刻印 (feat. KOKO & V.W.P)
2025-03-26泡沫 (feat. RIM & V.W.P)
2025-03-26残火 (feat. KAF & V.W.P)
2025-03-26素的 (feat. KOKO & V.W.P)
2025-03-26愛憎 (feat. Isekaijoucho & V.W.P)
2025-03-26暗闇 (feat. Isekaijoucho & V.W.P)
2025-03-26魔法 (feat. RIM & V.W.P)
2025-04-23愛詩 (feat. KAF, RIM, Harusaruhi, Isekaijoucho & KOKO)
2025-06-11花十カクメイ前日譚
2025-06-11暴力的イグノランス
2025-06-11機械の声 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-06-11アイノ最適解
2025-06-11ぼくらの逃避行
2025-09-17電脳 sinka ver. (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-10-01魔女(真) sinka ver. (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-10-30終点 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2025-11-19点灯 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-03照射 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-14酸欠
2026-01-17幻界 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-21言葉 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-21命海 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-21残響 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-21起動 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)
2026-01-21愛詩 (feat. 花譜, 理芽, 春猿火, ヰ世界情緒 & 幸祜)

Genealogy and Expansion Song Archive

V.W.P’s five-member songs are divided by creative lineage into genealogy songs and expansion songs, with continuous numbering; member duets are filed separately as derivative songs.

Genealogy songs

No.ReleaseTrackLyricsMusicArrangement
12021-03-21”Majo (Shin)“IORI KANZAKI & TakayanIORI KANZAKIrionos
12021-06-20”Den’nō”IORI KANZAKIIORI KANZAKIIORI KANZAKI
22021-11-03”Rinne”IORI KANZAKIIORI KANZAKIIORI KANZAKI
32021-11-18”Henshin (The Metamorphosis)“IORI KANZAKIIORI KANZAKIHIDEKI ATAKA
42022-01-21”Kotodama”IORI KANZAKIIORI KANZAKIIORI KANZAKI
52022-07-27”Kyōmei”IORI KANZAKIIORI KANZAKIIORI KANZAKI
72022-12-21”Saikai”IORI KANZAKIIORI KANZAKISosuke Oikawa
82023-05-25”Majo (Shin)” (Original MV)IORI KANZAKI & TakayanIORI KANZAKIrionos
92023-06-17”Jōmyō”IORI KANZAKIIORI KANZAKITakumi Masanori
102023-07-12”Gangu”IORI KANZAKIIORI KANZAKIIORI KANZAKI
122023-08-23”Saidan”IORI KANZAKIIORI KANZAKIIORI KANZAKI
132023-11-08”Himitsu”IORI KANZAKIIORI KANZAKIMasanori Takumi

Production structure: almost every genealogy song is written and composed under the lead of Kanzaki Iori, with arrangements alternating between him and rionos, HIDEKI ATAKA and Takumi Masanori. This “central author plus external arrangers” model keeps the narrative unified while varying the sonic texture.

Expansion songs

No.ReleaseTrackLyricsMusicArrangement
112023-08-02”Hishō”Sasagawa MaoSasagawa MaoSasagawa Mao
142024-01-06”Kanjō”AMAMOGUMatsuda Junichi, MILKEYAsahina Kento
152024-01-16”Kirifuda”RenRen, MILKEYAsahina Kento
162024-03-06”Dōmei”Kanata Okajima, Hayato YamamotoKanata Okajima, Hayato Yamamoto, MEG (MEGMETAL)MEG (MEGMETAL)

What the expansion songs mean: unlike the genealogy songs, they invite creators from outside the KAMITSUBAKI system (Sasagawa Mao, Asahina Kento, Kanata Okajima, MEG). They are the interface through which V.W.P opens out from an internal narrative mythos into a broader pop soundscape.

Derivative Songs (Member Duets)

Beyond the five-member songs, the members of V.W.P have produced several duets, which stand as sonic evidence of the internal web of relationships.

ReleasePairingTrackLyrics / Music / Arrangement
2020-11-24KAF feat. RIM”Mahou” (“Fukakai Two Q1” Live Ver.)Kanzaki Iori
2021-06-18ISEKAIJOUCHO × KAF”Shin’en”Kashii Moimi
2021-10-23HARUSARUHI × ISEKAIJOUCHO”Rougoku”Onuma Parsley
2021-10-23ISEKAIJOUCHO × KOKO”Kokuin”Hiiragi Magnetite
2021-10-23RIM × ISEKAIJOUCHO”Utakata”Ren
2022-10-16HARUSARUHI × KOKO”Furukizu”Onuma Parsley (arr. Ataka Hideki)

Observation: the three duets released together on 23 October 2021 (“Rougoku”, “Kokuin”, “Utakata”) each came from a different creator yet arrived on the same day — readable as a systematic experiment by KAMITSUBAKI in pairing witches two at a time.

The V.G.P. April Fools Project and Fan Culture

V.W.P’s official history includes a widely retold “hoax” episode.

  • 1 April 2021: the studio announced that V.W.P. would be renamed V.G.P., and that evening the members streamed Splatoon together; after the stream V.G.P. was disbanded and the name reverted to V.W.P.
  • 2 May 2022: V.G.P. returned “for revenge”, the members played PICO PARK together, and V.G.P. was disbanded again afterwards.

Cultural meaning: this sequence sets the solemn narrative of the “witch assembly” beside light-hearted member interaction, becoming one of the most beloved running jokes in the fandom and adding an everyday, human layer to the group’s image beyond that of a sacred chorus.

V.W.P is directly tied to the “witch” worldview within the Kamitsubaki ecosystem. The five members each represent different witch attributes, and their lineage and derivative songs form the backbone of Kamitsubaki’s narrative. Group activities are also deeply connected to cross-media projects like “Kamitsubaki City Under Construction.”

The “INTERVAL” charging period that began on March 31, 2026 marks the end of V.W.P’s first chapter and preparation for a new phase. After each member has refined her skills individually, they plan to reconvene as a “Witch Rebirth.”

References

KAMITSUBAKI WIKI

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