A sweet and shy college age girl, she just wants to make friends. Because [Kokoha](https://anilist.co/character/288411) broke her hymen while harassing her as a child she can use dildos without worry since it's already too late to protect her virginity. She daydreams about being raped by a nameless, faceless, imaginary older brother. Because of her masochistic nature she's forced to collect S Energy for Kokoha by doing embarrassing things.

After she's arrested twice for public nudity, Tear Heart comes to her rescue and explains that she's under her care. This means police leave her alone allowing her to wander aimlessly through town completely nude or wearing whatever fetish clothes she desires. Getting stares and lewd comments from strangers will still happen of course.

Based on the erotic game by 4H. 
 
Touka Minamori is a college student at a university in Tokyo. Although she has a model-like style and good looks that turn heads, she is a hard-core loner who is not good at socializing. Then a younger childhood friend, Kokoha, appears in front of her. To her surprise, she turns out to be the magical girl Tearheart. She then invites Touka to join her as a magical girl. But Touka immediately rejects the offer. 
 
"Because I'm a college student......!?" 
 
Despite her refusal, Touka reluctantly accepts to become a "magical college girl" after being pushed aside by Kokoha. During the transformation, she is exposed in the nude, is called a "lascivious woman" on the streets, and is even attacked by the enemy monsters. What is the future of Crystear, the new magical college girl? 
 
Magical girls are out of fashion! The era of the magical college girl with a sexy and erotic body has arrived!