(This is connecting to Highschool dxd Harem x kamen rider ghost reader and this story takes place between Volume 2 and 3 so hope you enjoy it) After the battle with Darkness Ghost Fuyu and his friends where given tickets by Rias to have a vacation for the summer holidays. When Fuyu and his friends arrived at the hotel where they supposed to have a vacation but soon Fuyu and his friends must help with Lucifer and her team to track down the seven mortal sins and take them out. (Also this is the story where sin specter will make it appears and be used in volume 3 and 4)
4 parts