Iruan's father, Wu Teng-shu, was the captain of a fishing boat who spent most of his time at sea. Wu fell in love in Uruguay with a woman from Brazil, leading to the birth of Iruan in 1995.
吳憶樺的生父吳登樹是一名漂泊四海的船員，他在烏拉圭與巴西籍女子譜出異國戀曲，一九九五年生下吳憶樺。