She plays for the Black Ferns internationally and was a member of their 2021 Rugby World Cup champion squad.

Mikaele-Tu’u attended Hastings Girls High School and debuted for Hawke's Bay in the Farah Palmer Cup in 2019.

[1] Mikaele-Tu'u played for the Blues against the Chiefs in the first-ever women's Super Rugby match in New Zealand on 1 May 2021.

[4][5][6] On 3 November, She was named in the Blues squad for the inaugural Super Rugby Aupiki competition.

[16][17] In July, she made the starting line up in the Black Ferns 21–52 victory over Canada at the Pacific Four Series in Ottawa.