On 14 July 2018, Hololive Productions put out a casting call for the virtual maid "Minato Aqua", with the character design done by the illustrator Gaou.

[6] Less than a month later, Minato Aqua debuted on YouTube as the first member of Hololive's 2nd Generation alongside Murasaki Shion, Nakiri Ayame, Yuzuki Choco, and Oozora Subaru.

Aqua's official character profile describes her as a marine-themed maid who can be awkward and clumsy,[7] though fans know her as a shy introvert with exceptional gaming skills, particularly in Apex Legends.

[8] Minato Aqua said that it was her childhood dream to be an idol, but thought it was impossible to achieve due to her self-stated lack of smarts, singing ability, and communication skills.

[16] Aqua produced and starred in her own visual novel Aquarium, developed by Entergram and released for the Nintendo Switch and PlayStation 4 on 27 October 2022.

"(#あくあ色ぱれっと) (海想列車) (きらきら) (あいわな) (未だ、青い) (君の最推しにしてよ！) (エイムに愛されしガール) (プリンセス・キャリー) (恋愛ストラテジック) (キズナトキセキ with hololive JP) (#きみいろプリンセス) (あくたんのこと好きすぎ☆ソング/For The Win (2022 ver.))