Mahou Kishi Arika & Rin - Otome ni Muragaru Otoko-tachi no Ma no Te "Soredemo Watashi-tachi wa Makenai!!"

Arika and Rin are classmates who have been friends since childhood. Their peaceful everyday life is one day interrupted when they meet a mascot named Moruru. Moruru informs them that 3 aliens are attacking their home town, raping women in order to gain energy from sex, and they must help defeat these aliens. Arika and Rin accepts Moruru's contract, and becomes magical girls.