'Ailani - The Last Warrior, #1

When Lio's lover cheats on him, he's forced to give up what he thought was an idyllic romance he's lived with Maks, including their stunning, scenic Waikiki apartment. He rents a cheap house on the other side of the island which has magical views so why is it so cheap? He soon becomes haunted by dreams in which a fearsome yet sexy Hawaiian man begs him to rescue him from the garden. Lio is certain he's going nuts until one night in the midst of a tropical rainstorm he follows the man's urgings and digs a hole in the yard.
He finds a gigantic, ancient stone statue with scary eyes. that gives Lio the power of. THE LAST WARRIOR.