Sumire Hiyama, better known as Frostia, is captured by the evil organization Hamelder. Although they’ve stripped her of her clothing, she maintains her determination and swears to destroy the enemy base. Meanwhile, Rin, feeling responsible for her kidnapping, seeks the help of Mii, a spirit, to find Sumire. Once at the base, Rin finds herself surrounded by a large number of enemies and is immobilized. No matter how many enemies are defeated, they keep appearing to rape the heroines.
