Meet Io, also known as Subject BV01, also known as the first cow. This albino behemoth bovine is the blueprint off of which the cows you see nowadays in fields and in your hamburgers were built. Deemed a dramatic failure, Io lacked the docility and harvestability that Big Farmaceuticals Inc. were looking for to revolutionise their medicinal developments and so she was discarded.

Today, Io works tirelessly as a guard in "The Crowbar" one of the many Golden Star Rehabilitation Facilities on Earth. Though she takes a hard, almost overbearingly strict stance with the girls under her watch, she has the utmost pride in her work. The Crowbar is her ranch, she the shepherd and they her herd.