Freak Island, Vol. 1

Takaku and Uehara, 6 members of the M University Ruins Research Club, visit the deserted island of Kichiku Island, where they encounter a "monster" wearing a pig's scalp. An island that doesn't exist on the map, descendants of hidden Christians, and countless mummies crucified on crosses... A
bloody and despairing survival story begins in the extreme situation of being trapped on an isolated island with a sadistic killer. Landing is strictly prohibited! There is a bloodthirsty "demon" on this island.