Minerva

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. (Source: Wikipedia)