CHAIN THE LOCK～沖縄に眠る財宝～

An event has taken place in Okinawa that has become the topic of conversation lately, and the people living in Okinawa have a new and strange rumor.

They say that it's true that somewhere on the island rests a treasure.

This game takes the game format and mixes it with fiction and actual events in Okinawa.
Human relationships add to the mystery to make this the greatest masterpiece of the CHAIN game series.
Chains are born as the bravery and tragedy lie shrouded in mystery.