They are known for their production design work in the Puella Magi Madoka Magica series, as well as creating the ending credits sequences for Maria Holic and Usagi Drop.

In early 2007, with the backing of Production I.G which 2shiroinu had connections to, the music video was officially released as an extra on her 30minutes Flight Night concept album.

[5] Early on, before Gekidan Inu Curry were brought onto the project, the members of Magica Quartet (Shinbo, Urobuchi, artist Ume Aoki, and Shaft) were meeting and exchanging ideas for the series.

Urobuchi was initially concerned as he believed the Shaft-Shinbo-Aoki team to be that of Hidamari Sketch, an adaptation of Aoki's manga headed by Shinbo and Shaft about girls at an art school.

Urobuchi read the Hidamari Sketch manga to grasp the character style, but still found it difficult for him to understand even after viewing Shinbo's previous magical girl series, Magical Girl Lyrical Nanoha (2004), and his gothic horror OVA, Le Portrait de Petit Cossette (2004), which had music composed by Yuki Kajiura who would also end up composing the music for Madoka.

[6] Although he struggled with this, it was eventually when Gekidan Inu Curry were brought onto the project that Urobuchi believed he could successfully link the two ideas together to create a magical girl anime.

[6] In their initial meeting, Shinbo also told Gekidan Inu Curry that Madoka was unlike Magical Girl Lyrical Nanoha and more akin to an extension of Le Portrait de Petit Cossette.

[10] Like with the TV series, the two were involved with the alternate space production design work, but also contributed to the dialogue of character Nagisa Momoe and wrote additionally scenes into the screenplay like the opening "tea party" sequence.

[2] In 2020, Doroinu was announced to be the chief director of Shaft's adaptation of the Magia Record game, which he also was the main series composition writer for.

Although initially given a 2024 release, the film was later pushed to 2025, with most of the main staff—including Shinbo, Miyamoto, Urobuchi, Aoki, Shaft, and Kajiura—returning, but Doroinu solely returning as the alternate space designer as a part of Gekidan Inu Curry.

[19] Sakamoto described the colored drawings presented to her as having a "quality of a picture book and the unrealistic feel of a fairytale as well as a dark aspect to it".