Hikuleo's ancestors were, according to one source, the god Piki (Limu according to others) and the goddess Kele, who came from Pulotu and created the mythical land of Tongamamao for their children to dwell in. They had a son Toiukamea (hidden iron) and a daughter Māimoaalōngona (royal game of hearing) who married each other and had children. Among their children were twins, the boy Taufulifonua and the girl Havea Lolofonua. One day they lay on the beach, naked, as they were still innocent, with their legs in the sea. The tide rose and the water covered them more and more. Then an oo (meaning: to penetrate) fish swam along and started to suck from the girl's labia, which caused her a lot of pain. Once the fish had been chased away the boy tried to gently stroke her inflicted parts but that did not give her relief. Then instead of his hand, he tried it with his penis, and suddenly the girl was consoled. So copulation was invented, and Havea Hikuleo was the first of many children.
Meanwhile Taufulifonua and Havea Lolofonua's younger brother and sister, also twins, also married each other. They were named Fonuuta (land turtle) and Fonutahi (sea turtle) and their child was Maui (Maui Motua, that is; if he was not the child of Taufulifonua and Havea Lolofonua themselves). And the next younger brother and sister, also twins who married each other, were Velesii (small enticer) and Velelahi (big enticer), who brought forth Tangaloa (Tangaloa Eiki, that is).
When Taufulifonua had become old and close to death, he divided the universe: Tangaloa got the sky to rule, Maui the earth, and Havea Hikuleo became the lord of Pulotu.
The historical interpretation of this triumvirate (Hikuleo, Maui, Tangaloa) may be a struggle to liberate Tonga from the dominance of the Tui Pulotu empire in Fiji, after which the victors could divide the spoils. Or, in reality perhaps, those three were Sāmoans, which made Tonga part of the Tui Manua empire.