Mina’s encounter with a mysterious character donning a gas mask leaves her with an intensified level of both fear and curiosity regarding the island prison she suddenly finds herself a part of. The bizarreness of her situation only grows after she is ushered into an empty room with other female prisoners to engage in unbecoming acts under the influence of a mind-altering incense. That very night, though, Mina gets an unexpected chance to sneak out her cell and search the prison for some answers. The classified file she stumbles upon, however, proves to be a bit too much for her to handle. What is the real story behind the island prison!?