Futanari Uniform Girl ~Invaders from Another World

Mio is an ordinary female student. One year ago, she transformed into a futanari and saved another world.
While living peacefully in the modern world, she reunites with her childhood friend, Luca, for the first time in 10 years, but fate once again shakes her up. She
is reunited with Seira, a saint from another world.
Seira has appeared to stop invaders from another world that are threatening the modern world.
To protect peace, Mio must once again rise up as the hero of the holy sword, the futanari!