You play as a guy who just died. Fire elemental Imira offers you a deal to find her an amulet on Timeless Island in exchange for resurrection, you agreed.
Timeless Island is a place that exists outside the laws of time and space. People from different eras can get there.
After getting to the island, you meet half-elf Fiona. She, gladiatrix Lina, and Bastet priestess Klio live there in the shelter, you decided to join them.