Heroes, tentacles, and eggs… The first part of the animation for this series’ 10th piece of work is here. With the return of the Demon Lord, the demons are going rampant across the world. Leona, one of the people on a mission to defeat the demons, looks up at the sky, at the second moon that shouldn’t be there. This red moon led to the return of the Demon Lord and gives all of them more power, causing her trouble as she goes up a couple of them. In her fight, she is saved by a young man named Hein, a researcher looking into ways to deal with the demons. According to him, there is a way to deal with the demons even with them being powered up by the red moon. To do this involves giving her body up to Hein, which Leona didn’t want to do, but…

Leona turns the demons to dust with one strike from her sword. She doesn't want to admit it, but after being embarrassed by being raped by tentacles and giving birth to an egg from it, her fighting abilities have enhanced. The promise of being able to resist the red moon's effect was kept, but Leona still can't get over that she was deceived, making her not able to accept Hein. After being freed from Youki, Akris asks to go along on their journey tp defeat the Demon Lord. Hein calls for her to see how determined she actually is. She says that she will do whatever she can to help them, so Hein decides to test her determination...

One of the 4 demon lords has appeared in the desert, will the newly awakened powers and the combined might of the heroes be enough to vanquish them? Or will they once again succumb to lust?

Once a powerful knight, she has fallen now to be but a plaything of lustful men and demons alike. A slave collar affixed to her neck prevents her from going against her master's orders...