In Okinawa, a down-and-out middle-aged yakuza underling named Shidara kidnaps and confines a high school girl named Yui, the daughter of a fellow yakuza’s mistress.

When a massive, gilled monster emerges from the deep and tears through the city, the government scrambles to save its citizens. A rag-tag team of volunteers cuts through a web of red tape to uncover the monster's weakness and its mysterious ties to a foreign superpower. But time is not on their side - the greatest catastrophe to ever befall the world is about to evolve right before their very eyes.

Shiori, who was called out by her friend Akiko after a long time, was told that she was going to get married. Although Shiori congratulated them with a smile, Akiko's boyfriend Takatsuki was a man who had secretly had feelings for her even before she became a NR. Meanwhile, mysterious disappearances were occurring in the town...

A troubled teenager who is about to kill herself has a life changing encounter with a female vampire.