Minerva is the goddess of wisdom and poetry and the fifth goddess to be revealed in the series. While Shiori is her host, unlike her older sisters, Minerva is able to exist outside of her host with her own body, a young 5-6 year old girl who looks similar to Shiori. When Minerva takes over Shiori's body, her body shrinks and hair grows longer. Like her host, Minerva is shy and loves reading books.
When Minerva is first introduced, Shiori is unaware who she is, believing she is a lost child as both have yet to make their acquaintances. While it is unknown when Minerva awoken, it is known that it happen before Apollo's warning to her sisters. During the time Keima repairs his relationship with Shiori by helping her write a story for the school festival, Minerva secretly helps her as well. But when she suffers from Writer's Block, with help from Keima and later Minerva, who finally talks to her face to face, Shiori is finally able to finish her story; a story about her love for books and Keima. When Keima finishes reading her story while Shiroi is sleeping, Minerva takes over her body and meets Keima for the first time. But because of Apollo's warnings, she is unwilling to talk to him. Nevertheless, with his relationship with Shiori improving, which restores Minerva's powers including her wings, Keima decides to leave them be for now while Minerva properly introduces herself to Shiori.
