Set in a modern fantasy world, Secret Island puts you in the shoes of a powerful sorcerer and battle-hardened mercenary. After being caught in a war you never wanted to be a part of, you fought just for the chance to get revenge on some people on the other side, just to be betrayed as you got your revenge. Shot and left at sea, you found yourself on an unknown island, saved by a group of intriguing women, not all of them human. Strangely, you've never heard of this place before.
As you settle into life on the island, you quickly realize something is amiss. People can't leave, despite hearing messages from the outside world. Mysterious magic seals protect various parts of the island. People don’t want to talk about other people living on the island. You are filled with questions about who else is living on the island, about who made the magic seals, what dangers lurk around, and why you are there. Both you and your newfound companions harbor secrets.
Explore the island. Discover the lore of this world. Meet new people, bring them to live with you, and delve into romantic relationships with them.​