Synopsis：Touka is a 19-year-old college girl looking forward to her new life at university. She hopes to make friends with other girls and find a boyfriend. However, she secretly loves masturbation and using dildos. While she is pleasuring herself with a new dildo she received from overseas, her childhood friend Kokoha records her. It turns out that Kokoha is a magical girl, and magical girls tear hearts! But Kokoha is not shy at all! She demands that Touka become a magical girl so she can collect S-energy for both of them. She blackmails Touka by showing her masturbation video to everyone at school until Touka agrees. Touka becomes the magical girl Jousei Christea and helps the Tear Hearts put on sexual performances. However, she really doesn't need anything other than collecting S-energy!