Series synopsis
KAMITSUBAKI CITY UNDER CONSTRUCTION, also known as 神椿市建設中。 is a Japanese animation sci-fi & fantasy mystery television series that premiered on MBS on July 10, 2025. It ended on September 25, 2025. It stars KAF, RIM, Harusaruhi and Isekaijoucho.
Seven years after humanity was devastated by a major disaster, a beacon of science and prosperity rises in Kamitsubaki City. But lurking in its shadows are Tesseractor monsters born from human darkness. Only the Witchling, five girls with Song of Purification, stand against them. With every note, they fight, not just to protect the peace of the city, but to heal a broken world.
Premise
Seven years after humanity was devastated by a major disaster, a beacon of science and prosperity rises in Kamitsubaki City. But lurking in its shadows are Tesseractor monsters born from human darkness. Only the Witchling, five girls with Song of Purification, stand against them. With every note, they fight, not just to protect the peace of the city, but to heal a broken world.
Cast and characters
Leading cast
- KAF as Kafu Morisaki (voice)
- RIM as Rime Tanioki (voice)
- Harusaruhi as Haru Asanushi (voice)
- Isekaijoucho as Sekai Yorukawa (voice)
- Koko as Koko Rinne (voice)
- Ayane Sakura as Laplace (voice)
- Miyu Tomita as Hastur (voice)
- Yohei Azakami as Agni (voice)
Supporting cast
- Shuichiro Umeda as Anemos (voice)
- Mai Toudoh as Kugel (voice)
- Shizuka Itoh as RD Chief (voice)
- Hikaru Midorikawa as Maxwell (voice)
Episodes
This series spans 2 seasons with 13 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 0 | 1 | July 3, 2025 | July 3, 2025 |
| Season 1 | 12 | July 10, 2025 | September 25, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
-Witchling- (1) Kafu, a victim of a disaster seven years ago, learns a unique way to fight the monsters plaguing her city. |
July 3, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
-Witchling- (2) The witchlings address an unfolding disaster at City Hall, but Sekai foresees a greater disaster to come. |
July 10, 2025 |
| 2 |
Song of Purification As the RD struggles to keep the outbreak under control, Sekai rushes to save the people of her old church. |
July 17, 2025 |
| 3 |
Fragment The witchlings debate the fallout from their last mission while the RD Chief struggles to understand. |
July 24, 2025 |
Production
Release
| Original network/platform | MBS |
|---|---|
| First aired | July 10, 2025 |
| Last aired | September 25, 2025 |
| Runtime | 24 minutes |
| Status | ended |
| Schedule | Thursday at 23:45:00 |