The club was founded on 7 January 2025 and competes in the K4 League, the fourth tier of men's football in South Korea.

Sejong SA FC was founded on 7 January 2025 and began recruiting players to compete in the 2025 K4 League.

[1] They made their league debut on 22 February 2025 in an away match against Namyangju Citizen, which they lost 2–1.

[2] They played their first home match the following week against Daegu FC B, resulting in a 1-3 loss.

[3] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.