The Legion is back in full force, and they're heading for Amaranthia, the mysterious, long-abandoned house on the Red River which holds a clue that could completely change the war between the living and the dead.

Vincent is an online English teacher looking for something to distract him from the recent breakup with his girlfriend. When his brother Brent, and Brent's girlfriend Amira, invite him on a boat trip to an isolated island, he agrees to come. Yōkai Island is believed to be haunted, and that's exactly why so many young people want to visit it. Everyone wants to see the ghost of Junko Isaka - a young Japanese woman roaming the island and whistling. The...