After graduating from the University of Cambridge with a law degree, Mak made her debut in the entertainment industry by winning Miss Hong Kong Pageant in 2015.

[2][3] Her father was a chemistry teacher and had served as the vice principal of Sheng Kung Hui Lam Woo Memorial Secondary School, while her mother worked as an occupational therapist.

[17] She took a total of ten subjects and obtained straight A's,[13][18] the highest attainable score, along with thirteen other candidates in the 2009 Hong Kong Certificate of Education Examination.

[29] Mak participated in the Miss Hong Kong 2015 beauty pageant contest hosted by TVB, describing her motive as "seeking uniqueness in an ordinary life" and "finding a way to emphasise her own traits and characteristics".

[36] After winning the title of Miss Hong Kong, Mak engaged in negotiations with TVB but declined their initial offer of a ten-year contract, instead opting to sign as an artist for five years, with a mere HK$1,600 (USD$205) of guaranteed monthly wage and no fixed quotas for acting jobs.

[40] The same year, she hosted the travel programme A Starry Home Coming [zh], which documented Mak's return to and tour of her alma maters, Wellington College and the University of Cambridge.

[43] Mak later refuted these rumours in an interview with The Standard, asserting that they had applied for approval weeks before the shoot and that the filming had proceeded smoothly, while criticising The Tab as a tabloid that was not taken seriously by Cambridge students.

[44] She was also invited by director Patrick Kong to make her acting debut and star in his romance film L for Love L for Lies too [zh] later in the same year,[45] where she assumed the second female lead role of Si Ting, the sketchy best friend and younger sister of a pair of lovers played by Stephy Tang and Wilfred Lau.

[46][47] In June 2017, Mak made her television debut in the TVB gambling-themed mystery thriller series Bet Hur [zh] as Dorothy To, the granddaughter of Lau Siu Ming's character who was unaware of her family's dark history.

[50] The show garnered positive viewership,[51] and Mak received a nomination for Most Popular TV Partnership along with Fung at the TVB Anniversary Awards in the subsequent year.

[52] In September, Mak took on the role of Cherry Yeung, one of the five undercover agents working under an inspector played by Michael Miu, in the espionage thriller series Line Walker: The Prelude.

[56] Screenwriter Lee Sin [zh] described the role as "tailor-made" for Mak, aligning with her real-life experiences and personality,[57][58] and she was consulted by the crew regarding the specifics and jargons of the legal profession on set.

[65] Mak's final role with TVB was that of Megan Yim, the blind daughter of a struggling assassin portrayed by Wayne Lai in the 2020 action thriller series Death By Zero [zh].

[87] They registered for marriage in Australia in late February,[88] and held their wedding ceremony, along with a poon choi feast, at Shing Uk Tsuen, Yuen Long, on 23 March.