Starting her career in Ghana at Fabulous Ladies,[3] Kusi moved to Lebanese-based Zouk Mosbeh in 2017 one a one-year contract.[4] In her only season in Lebanon, she won the league, cup and Super Cup, and was crowned top scorer of the league.[5] Kusi returned to Fabulous Ladies in 2018 for one year.
On 17 January 2020, Kusi returned to Lebanon, signing for Safa mid-2019–20 season. She scored a hat-trick for her new club just three days later, against Stars of South in a 5–0 victory.[8] Kusi ended the season with 13 goals in seven appearances, helping her side come second in the league.[9]