GRET-51 Mirei Shirasaki (Shirasaki Mirei) Giant Heroine Hyper Mommy GIGA

The protagonist is an alien—a righteous giant warrior known as Hyper Mommy. She hides her true identity as an extraterrestrial and lives on Earth as a member of the space defense force. One day, numerous young women begin to go missing. All the victims were wearing the same blue clothing, and those who wore it seemed to be targeted. Concerned about the mysterious cloth, the heroine visits a friend—only to encounter another alien who has been exiled from her home planet. This alien feeds on human blood and eggs, and having lost her entire colony, she now abducts human women to use them as breeding vessels to propagate her species!