[citation needed] Sung's debut movie was screenwriter and producer Giddens Ko's romance film Café.

After Sung's interview with film producer Angie Chai, Ko told his agent, "This girl is perfect for the role!"

Director Frankie Chen said in an interview that Sung is a logical thinking girl, but her character is the complete opposite and acts based on her instincts instead.

Mentor Xu Jiehui suggested to break down Sung's elegance, forcing her to learn how to be her character by unlearning how to be herself.

In 2016, Sung was cast as the lead character, Shen-xi, in the Chinese fantasy web series Proud of Love.

[citation needed] The third film that Sung starred in was Take Me to the Moon, in which she played lead character Li En-pei (also named Emma).

[5] Sung and Chang were widely praised for their on-screen chemistry, making them a fan-favorite duo, with many fans expressing hopes for future collaborations.

[6][7] On 28 November 2020, Sung launched her YouTube channel where she posts videos featuring her celebrity friends, including Marcus Chang, Bruce Hung, and Simon Lian.