Kamitsubaki City Under Construction

Kamitsubaki City Under Construction (神椿市建設中。, Kamitsubaki-shi Kensetsu-chū.) is a Japanese mixed-media project created by Kamitsubaki Studio. It began in 2019 and consists of songs, videos, as well as a tabletop game and a video game.^[1] A rhythm game titled Kamitsubaki City Ensemble (神椿市協奏中。, Kamitsubaki-shi Kyōsō-chū.) was released on August 29, 2024, and an anime television series produced by SMDE [ja] premiered in July 2025.

Kamitsubaki City Under Construction
神椿市建設中。 (Kamitsubaki-shi Kensetsu-chū.)
Created by	Kamitsubaki Studio PIEDPIPER
Video game
Kamitsubaki City Ensemble
Developer	Studio Lalala Rocket Studio
Publisher	Kamitsubaki Studio
Genre	Rhythm game
Platform	iOS, Android, Microsoft Windows (Steam), Nintendo Switch, PlayStation 5
Released	August 29, 2024
Video game
Kamitsubaki City Regenerate
Developer	Kamitsubaki Studio Orange
Publisher	Kamitsubaki Studio
Genre	Visual novel
Platform	Microsoft Windows (Steam), Nintendo Switch
Released	March 13, 2025
Anime television series
Directed by	Kōdai Kakimoto
Written by	Kōdai Kakimoto
Music by	Kento Asahina
Studio	SMDE [ja]
Licensed by	Crunchyroll
Original network	JNN (TBS)
Original run	July 3, 2025 – present

Plot

Kamitsubaki City describes an urban, high-tech metropolitan City with its citizens living peacefully. But what they don’t know is behind this magnificent City lurks an unknown danger—and the only ones who can save it from danger are a group of witches who can sing.

Characters

Kafu Morisaki (森先 化歩, Morisaki Kafu)

Voiced by: Kaf^[2]

Rime Tanioki (谷置 狸眼, Tanioki Rime)

Voiced by: Rim^[2]

Haru Asanushi (朝主 派流, Asanushi Haru)

Voiced by: Harusaruhi^[2]

Sekai Yorukawa (夜河 世界, Yorukawa Sekai)

Voiced by: Isekaijoucho^[2]

Koko Rinne (輪廻 此処, Rinne Koko)

Voiced by: Koko^[2]

Laplace (らぷらす, Rapurasu)

Voiced by: Ayane Sakura^[3]

Hastur (はすたー, Hasutā)

Voiced by: Miyu Tomita^[3]

Agni (あぐに)

Voiced by: Yōhei Azakami^[3]

Anemos (あねもす)

Voiced by: Shūichirō Umeda^[3]

Kugel (くーげる)

Voiced by: Mai Tōdō [ja]^[3]

Reconstruction Manager (復興課長, Fukkō Kachō)

Voiced by: Shizuka Itō^[3]

Other media

Video games

A rhythm game titled Kamitsubaki City Ensemble (神椿市協奏中。, Kamitsubaki-shi Kyōsō-chū.) was released on August 29, 2024, for iOS, Android, Windows, Nintendo Switch, and PlayStation 5.^[4][5]

A visual novel titled Kamitsubaki City Regenerate (神椿市建設中。REGENERATE, Kamitsubaki-shi Kensetsu-chū.) was released on March 13, 2025 for Windows and the Nintendo Switch,^[6] which includes a virtual reality version.^[5]

Anime

An anime television series was announced on January 13, 2024.^[7][8] It is produced by SMDE [ja] and directed and written by Kōdai Kakimoto, with Sōki Tsukishima serving as supervisor and PALOW designing the characters.^[2] The series premiered on July 3, 2025, on TBS and its affiliates.^[3] The opening theme song is "Utahime" (歌姫; Songstress),^[9] while the ending theme song is "Fukusū Tenkai" (追憶; Multiple Developments), both performed by V.W.P [ja]. Crunchyroll is streaming the series.^[10]

Episodes

No.	Title [11][12]	Directed by [a]	Written by [a]	Storyboarded by [a]	Original release date [13]
0	"Witchling: Part 1" Transliteration: "Majo no Musume -Witchling- Zenhen" (Japanese: 魔女の娘 -Witchling- 前篇)	TBA	TBA	TBA	July 3, 2025 (2025-07-03)
The city of Kamitsubaki is hit by a disaster dubbed the "Blackout", where the sun turns green and instantly incinerates any human caught in its light. A young girl named Kafu appears to be immune to the effects of the Blackout, but she is traumatized when she comes across the burnt bodies of her parents. Orphaned, she is later adopted by her neighbor Erika. Seven years later, Kafu is now a high school student who sings as a hobby, but the city is now experiencing odd supernatural phenomena dubbed "Q". Her singing attracts the attention of a mysterious young boy named Laplace, until she receives word that Erika has caught up in a Q event. She heads over, but only arrives in time to see Erika killed by a monster called a "tesseractor". Laplace rescues Kafu and reveals she is a "witchling", a person whose songs have the power to destroy tesseractors, who are humans twisted by their own negative emotions. Kafu is also told that tesseractors and the "Incomprehensible Regions" they create are a side effect of Kamitsubaki's reliance on Fragments for energy, which is derived from human thought.
1	"Witchling: Part 2" Transliteration: "Majo no Musume -Witchling- Gohen" (Japanese: 魔女の娘 -Witchling- 後篇)	TBA	TBA	TBA	July 11, 2025 (2025-07-11)[b]
Kafu and her fellow Witchlings along with their familiars managed to suppress an outbreak of tesseractors. However, the number of Q incidents keeps increasing, with the risk of another Blackout occurring. That night, Sekai witnesses a premonition of a mass tesseractor attack on the city, and her prediction proves true when a massive Incomprehensible Area forms in Area 3. The Witchlings arrive in Area 3 and begin to engage the tesseractors until the Reconstruction Division discovers that the tesseractors' true target is the VALIS defensive shield that protects the city from Blackouts. With the other Witchlings busy either holding off the tessseractors or assisting in civilian evacuation, Kafu volunteers to protect VALIS. However, despite their best efforts, Kafu and Laplace fail to protect the VALIS device and it is destroyed, opening a breach in the city's protective shield.
2	"Song of Purification" Transliteration: "Jōka no Uta -Song of purification-" (Japanese: 浄化の歌 -Song of purification-)	TBA	TBA	TBA	July 18, 2025 (2025-07-18)[b]
Koko is ordered to escort the replacement VALIS device to Area 3, while Sekai receives a premonition that the Church of Isekai Salvation will be attacked by tesseractors, leaving the remaining three witchlings to hold off the tesseractor assault. Sekai and her familiar Anemos reach the church, and she is glad everybody is still fine, protected by the song the of resident witch, Makana. As Sekai purifies the tesseractors attacking the church, she recalls how she was raised by the church as a child but became disillusioned when she found out they only valued her for her witch powers. The Reconstruction Division then transports Sekai and Makana to the frontlines just as Koko arrives with the replacement VALIS device. The Reconstruction Division then instructs Makana to enter the device as it can only be powered by a "potential witch" like her. The witchlings protest the idea of sacrificing Makana, but she willingly enters the pod in order to protect everybody. The protective shield is restored, ending the tesseractor attack, but everybody is saddened at the loss of Makana.
3	"Fragment -Energy of will-" Transliteration: "Furagumento -Energy of will-" (Japanese: フラグメント -Energy of will-)	TBA	TBA	TBA	July 24, 2025 (2025-07-24)
The witchlings are dejected at Makana's death, with the Reconstruction Division explaining that the sacrifice of potential witches is necessary in order ensure the city's safety. Rime heads off to eliminate another tesseractor, and while doing so recalls how her parents invented Fragments technology, though her mother was killed by a tesseractor while her father turned into a tesseractor himself, forcing Rime to purify him. Kafu confronts the RD Chief about keeping secrets from her and the witchlings, and wishes that she could try and understand humans more rather than writing off their lives as necessary sacrifices. Kafu and Rime then return home and are shocked to see the RD Chief having taken a human form that looks similar to Kafu, so she can learn more about humans as Kafu suggested. After spending time with Kafu, the RD Chief eventually does come to understand human emotions and reconciles with the witchlings over Makana's sacrifice. However, the RD Chief is suddenly killed by Kugel, causing Kafu to suffer a nervous breakdown as she's reminded of Erika's death.

Notes

1. Production staff information is taken from the ending credits of each episode.
2. This episode aired at 12:26 a.m. JST, 30 minutes after the original air time on TBS.^[14][15]