[2] He scored 10 goals in 20 matches when he helped it win its first title at the middle school division of the K League Junior [ko] in 2021.

[2][3] After the club went on to win two additional youth championships that year, he was credited for playing a key role in the team's three domestic titles.

[2] While playing at the high school division of the K League Junior, he executed a hat-trick in the fifth round of Group B, followed by the club's first victory of the season with a final score of 6–0.

[6] He made his first senior appearance on May 25 in a match against Ulsan HD, named the youngest player to debut in the club's history at 17 years, 6 months and 27 days.

[1] Yoon cited Lionel Messi as one of his role models in addition to compatriots Son Heung-min and Lee Kang-in.