TSUKIUTA. (ツキウタ。, monthly song) is a running music and original drama CD series (with an anime series that ran in 2016) which features a collaboration between seiyuu (voice actors/actresses) and Vocaloid music producers, themed on the individual months of the year. It is a series that exists on a 2.5 dimension, as the characters of the series themselves are made to interact with producers.
Characters and Setting[]
For every month in the year, there are two representatives, one male and one female, accompanied with an assigned producer. The characters are further divided into four different units: two all-male units, and two all-female units. It should be noted that the male and female representatives are exist in two different dimensions, but do interact often.
Males[]
There are a total of 12 male idols present in the series, all under TSUKINO TALENT PRODUCTION. They are divided into two units: Six Gravity (manager: Tsukishiro Kanade) and Procellarum (manager: Kurotsuki Dai). All the idols are currently living together at the TSUKINO TALENT PRODUCTION's dormitory.
| Month | Representatives | Seiyuu | Producer | Unit |
|---|---|---|---|---|
| December | Shiwasu Kakeru | Kaji Yuki | Satsuki ga Tenkomori | 
|
| January | Mutsuki Hajime | Toriumi Kohsuke | Machigerita | |
| February | Kisaragi Koi | Masuda Toshiki | Nijihara Peperon | |
| March | Yayoi Haru | Maeno Tomoaki | Yuuyu | |
| April | Uduki Arata | Hosoya Yoshimasa | ChouchouP | |
| May | Satsuki Aoi | KENN | Nem | |
| June | Minaduki Rui | Aoi Shouta | Yuyoyuppe | 
|
| July | Fuduki Kai | Hatano Wataru | Hitoshizuku×Yama△ | |
| August | Haduki You | Kakihara Tetsuya | UtataP | |
| September | Nagatsuki Yoru | Kondo Takashi | John | |
| October | Kannaduki Iku | Ono Kensho | takamatt | |
| November | Shimotsuki Shun | Kimura Ryohei | Kikuo |
Females[]
Unlike the male characters, who are idols, the female characters exist on a different dimension, specifically, the Moon. However, both the Earth and the Moon are not entirely separate dimensions, as humans on the Moon are more or less humans who migrated from the Earth. The 12 female characters are those known as Goddess candidates, who are all aiming to become Goddesses, entities that maintain peace and stability on Earth, by studying in two specialized schools: Diana Academy and Selene Academy. Like the male characters, the female characters are divided into two units: Fluna and Seleas.
| Month | Representatives | Seiyuu | Producer | Unit |
|---|---|---|---|---|
| December | Hijiri Kurisu | Kanemoto Hisako | Satsuki ga Tenkomori | 
|
| January | Hanazono Yuki | Imai Asami | Machigerita | |
| February | Kisaragi Ai | MAKO | Nijihara Peperon | |
| March | Momosaki Hina | Ookubo Rumi | Yuuyu | |
| April | Togawa Chisa | Nonaka Ai | ChouchouP | |
| May | Yuki Wakaba | Uchiyama Yumi | Nem | |
| June | Terase Yuno | Satoh Rina | Yuyoyuppe | 
|
| July | Himekawa Mizuki | Ishigami Shizuka | Hitoshizuku×Yama△ | |
| August | Motomiya Matsuri | Otsubo Yuka | UtataP | |
| September | Asagiri Akane | Fukuhara Kaori | John | |
| October | Ichisaki Reina | Kurosawa Tomoyo | takamatt | |
| November | Tendouin Tsubaki | Uesaka Sumire | Kikuo |
Outside Interactions[]
Outside the TSUKIUTA. series, these characters also interact with other characters under TSUKINO TALENT PRODUCTION, including, but not limited to the ALIVE Series' SOARA and Growth, and the SQ Series' SolidS and QUELL.