He currently plays for Jeonbuk Hyundai Motors U14, wearing the number 34 shirt. He plays primarily as a Defender.

Throughout the Hangzhou "Qianchao Cup" International Youth Football Invitational Tournament 2025, Kim MinJun featured in 5 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.