A normal high school girl—Mio—was teleported to another world.

There, she became a futa, and saved the world about a year ago.

Returning to her own world, Mio has been living an ordinary, peaceful life and finally met her old friend, Luca, whom she hadn’t met in a decade.

However, fate has brought her another challenge.

She encountered someone familiar—Serah—the Saintess from another world.

She risked her life to teleport to Mio’s world to stop the invaders from her world from conquering Mio’s world.

To protect the peace, Mio became the Brave of Excocklibur Futanari once again!