Kubikiri Cycle: The Blue Savant and the Nonsense User

Nineteen-year-old Ii-chan and computer genius Tomo Kunagisa visit the remote Wet Crow's Feather Island as guests of Iria Akagami, who has gathered brilliant minds at her mansion. Their stay becomes a murder mystery when a grisly killing shocks the island and Ii-chan begins separating truth from deception among the guests.