ガチレズ大井bot (Gachi-les Ooi-bot, "Total lesbian Ooi bot")
An unofficial twitterbot born in September, 2013, roleplaying Ooi. In fact, it's not a "bot" but a manually updated roleplay account.
Her tweets are regarded as a part of a long, ongoing series of Kantai Collection fan fiction.
This tag is used for any art directly inspired by Ooi-bot's stories, characters or account itself.