During a midnight encounter, college student Souta meets an unfamiliar girl. Yuki, who insists that Souta previously rescued her, appears clueless about everyday customs—from shopping to using a fork. An odd trait also marks her: she is terrified of any skin contact, even a gentle touch. The peculiar existence of this enigmatic girl gradually evolves as they spend more time together.
Some men pursue Yuki with intent to seize her. Rumors claim she possesses a power that determines the world's destiny, and they seek her to give herself for it. What secret force does Yuki hold? Why does she shun touch? Ultimately, Yuki discloses her concealed truth to Souta and the mystery deepens as shadows lengthen, secrets stir for both.
