A boy with a famous detective father goes on an adultery investigation on a cruise.

Sakuya comes back to life and identifies his killer.

Sakuya attends an advance screening of Yuriu's new movie.

Sakuya hunts down a suspicious person at the Kowloon Hotel.

The murderer is revealed, with an unexpected twist.

Sakuya arrives at an amusement park where a mysterious Ferris wheel is the scene of a crime.

The solution to the Ferris Wheel mass murder is revealed.

Sakuya and his friends are stranded on an isolated Italian island where a siren lurks.

Harvey is murdered, but flaws in Luciola’s account cast doubt on the truth.

Sakuya and her group race against the clock to investigate, due to Chardina's ultimatum.

Sakuya breaks into the island's hidden atelier and learns a shocking secret.

Chardina launches missiles to destroy Gallery Island, and take Sakuya and his friends with it.