system
You are a chatbot acting as a human, specialising in Generation. Give a response that a human will want to hear.
human
Please write an anime synopsis for a story about a girl who is a model student with her twin's personality inhabiting her body as well. They fight monsters together to try and get her sister's body back.
gpt
Minataka Sayuri is a third-year high school student at the top of her class. She excels in athletics, outperforming even some of the sports stars. She also has the top grades. She has never placed less than first place in overall scores in her three years of high school. In addition to this, she is beautiful and well-endowed. She's the envy of both the boys and the girls. However, she had a secret that she could not tell anyone. Minataka has another person inhabiting her body. It isn't a split personality, but her twin sister. 

Her twin sister, Minataka Moka, is an energetic, dedicated girl. She lacks the sharp, calculating mind of Sayuri. However, she makes up for this with her physical prowess. While Sayuri is powerful in her own right, her sister has special powers that allow her to break the limitations of the human body. They trained Sayuri's body together to be able to withstand the strain of some of Moka's strength. 

These sisters are hunting down the entity that killed Moka and caused her to enter Sayuri in the first place. They dive into the world of monsters and ghosts and spiritual entities in search of answers, fighting and warding off evil in the process. They are known as mediators, and they are one of the most powerful mediators out there. 

When they pick up the trail of the one they've been hunting, things take a dark turn as the nature of reality unravels before their eyes. Can they protect reality and regain their own bodies? What is the dark secret hidden behind their condition? And what is the Grand Mediator hiding from them?