One day, the heroine, a kind-hearted nurse, takes a sick man who has collapsed on the side of the road to the hospital where she is serving and rescues him. But the man was an invader from outer space! A monster suddenly appears and destroys the city! The heroine transforms into a giant heroine, Sophilia, as she is guided by a mysterious ring given to her by a man! After a battle to the death, the first monster was defeated, but it was raped by a man who revealed his true identity, and multiple monsters appeared in the city. As the people watch, Sophilia is miserably attacked by monsters. ［BAD END］