Ark Performance is the shared pen name for a collective of Japanese manga artists, primarily known to consist of narrative writer Ishikawa Koichi and illustrator Mitsuyoshi Kenji. The group has been active since their debut in 1998, and the number of contributing members has varied over time as other collaborators have joined their projects. The collective is credited as the original creator for several anime productions, including the Arpeggio of Blue Steel -Ars Nova- television series, its theatrical films Aoki Hagane no Arpeggio: Ars Nova DC and Cadenza, as well as the anime works Mobile Suit Gundam Twilight AXIS and its compilation film, Mobile Suit Gundam Twilight AXIS: Akaki Zan'ei.

Ark Performance is best known as the creator of the long-running manga series Arpeggio of Blue Steel, which began serialization in Shonen Gahosha’s Young King Ours magazine in 2009 and continues to be published. This military science fiction manga, which centers on a conflict between humanity and a fleet of sentient warships known as the Fleet of Fog, serves as the source material for the Arpeggio of Blue Steel -Ars Nova- anime adaptations produced by the studio Sanzigen. In addition to their original work, the group has contributed extensively to the Gundam franchise, illustrating official manga adaptations and spin-offs such as Mobile Suit Gundam: The Plot to Assassinate Gihren and Mobile Suit Gundam MSV-R: Johnny Ridden’s Return, which was serialized in Gundam Ace magazine.

The collective’s artistic identity is characterized by a focus on mechanical design and military science fiction narratives, a specialty that has led to their involvement with major franchise properties. Their role in Gundam Twilight AXIS extended beyond illustration; the group is credited with the story and concept design for the original net anime and its subsequent theatrical edit, which was released in 2017. The Blu-ray release for this project featured a sleeve cover illustrated by Ark Performance. Within the industry, Ark Performance holds significance as a creative unit that successfully bridges original manga creation with high-profile adaptation work in both television anime and theatrical films, particularly within the mecha and military science fiction genres.