Remi

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…

Her boyfriend is her sadistic master...!? Or is he really a sweet, kind master...? Yuka is the personal maid of the handsome, young entrepeneur Takahiko, for whom she feels unrequited love. She lives peacefully with her calm and gentle master... or at least she did, until one day disaster struck. Since then, her master transformed into a sadist! He bites her breasts and…