[1] After completing his youth development between New Zealand, with NRFL Premier club Onehunga Sports, and South Korea, where he played for Incheon United while his father Lee Ki-hyung was coaching the first team, Lee entered Korea University and eventually graduated in 2020.
He subsequently made his professional debut on 28 February 2021, when he came in as a substitute for the injured Alex Grant in the 83rd minute of the 2-1 win against Incheon United.
On 28 June of the same year, he also made his debut in the AFC Champions League, as he replaced Go Young-Joon in the 88th minute of the group stage match against Malaysian side Johor Darul Ta'Zim, which ended up in a 4–1 win for Pohang.
[2] Lee joined the South Korean under-23 national team for the first time in September 2021, when he was invited by manager Hwang Sun-hong to take part in a training camp in Paju.
[2] He is the son of former professional footballer and manager Lee Ki-hyung, who represented South Korea at full international level.