GYO: Tokyo Fish Attack is a oVA anime that premiered in winter 2012, produced by ufotable.

About the production: the story comes from a manga, there is 1 episode of about 70 minutes and its current status is "finished".

Its main genres are drama, horror, mystery, psychological and sci-fi, with themes such as Gore, Post-Apocalyptic, Seinen and Coastal.

On AniList, GYO: Tokyo Fish Attack has an average score of 47%, an average score, and appears on 15,903 users' lists.

Something in Okinawa reeks, and it isn't long before Kaori and her friends realize that the smell is coming from dead fish, which are walking out of the sea. The fish are fused to metal legs and are infected with a disease contractable by humans that was invented as a weapon by unknown sources. After what happens to Tadashi, Kaori finds herself in a new world very much like the old one but with the stench of death.

Official synopsis from AniList.