Yamako had been an ordinary school girl.
One day after school, she had been staying late studying in the library.
She finished studying and was about to head home when suddenly the room went dark,
and she was raped by an unknown man who she couldn't make out.
This event was a traumatic experience for her, and she went to a mental ward to get treatment.
She completed therapy and her energy, which began to channel into her anger
for the rapist who did this to her.
Yamako asks around the school while hunting down the grapist...