A Magical Girl Never Loses!

Amidst the sudden appearance of monsters, the magical girl Astra Nova appeared to save the people from danger. However, while the magical girl Erina was engaged in a fierce battle against the monsters, she let her guard down for just a moment and ends up being captured by the villain Nox. Erina begins to experience strange sensations little by little in response to Nox's secretive and suggestive demands...