Nozomi Hanayagi

A paranormal investigator is caught up in an unusual criminal revenge case – the guilty one is always a goldfish. One death follows another, always different and very violent. The causes lie far back in human history.

Taka, a shiftless young man, sets off on a quest to find his brother Mune. Teaming up with a quirky new friend and an edgy, mysterious young girl along the way, Taka finds himself taking on a pack of vicious monster cats determined to execute unscrupulous pet shop owners.

People are gathered by recruitment or being kidnapped.These people take part in the Werewolf Game. The participants must risk their lives in the game, while wealthy people wager on the winners and losers of the game. Masamune (Yuuki Ogoe) works as an operator of the game. He finds out that female high school student Yuzuki Natsume is one of the participants in the Werewolf Game. Masamune once taught Yuzuki Natsume as a private tutor. He wants to save her and he is willing to risk his life to do so.