Nashiwa Yukiko

In the 23rd century, a hidden group called Shadow is taking over the world. To fight against Shadow, billionaire Midoriyama Rei creates a secret organization called Circus. When she can't find qualified pilots for Circus' main mecha, the Galvion, she cuts a deal with two convicts, Mu and Maya: they must lead the fight against Shadow and save innocents in exchange for years…

Kasuga Eri is a 12-year-old tomboyish girl. One day, she is visited by two aliens from planet Mahl - a mouse-like alien named Chinpui and a dog-like alien named Wanderyu. The two have come to Earth in order to find the girl who will marry the prince of their planet. Source: Wikipedia