Kang grew up in Tokyo,[1] where she went by the name Ōmura Yumi (Japanese: 大村 裕美).

She moved to South Korea on her own at the age of 17 to attend Dongsan Information Industry High School in Seoul.

[2] After graduating high school, she attended Hanyang Women's University.

[3] On 30 April 2015, she was named in the squad for the 2015 FIFA Women's World Cup in Canada.

This biographical article related to women's association football in South Korea is a stub.