In order to explore the truth behind the disappearance of the scientific expedition team a hundred years ago, marine biology professor Lecter led the team members into the cursed black reef waters. Thick fog locked the reef, and deep-sea ruins emerged. A bronze badge engraved with tentacle patterns led them to the sleeping place of the old ruler, the Lord of the Deep Reef. The team members are being assimilated by strange forces one after another, rationality collapses, and faith is shattered. Can the sacrifice of the secret keeper temporarily seal the ancient god? Will this exploration with life as a bet finally lift the veil of taboo, or will it become a sacrifice for the awakening of the ancient god? The fog in Rusty Anchor Town has never dissipated, and the whispers of the abyss are still waiting for the next listener.
