Thmoon (문웅주), also known as Moon Woongju and “외곽의 인디맨,” is a South Korean
singer-songwriter based in Seoul whose work spans K-indie, indie rock,
alternative rock, and Korean rock. Active since the mid-2010s, he first emerged
with the indie rock EPs HIKI and COMORI in 2016, later expanding his sound
through releases like Wine and Pepper Shaker (2021) and the single “CTC” (2023).
Continuing to build a distinct presence in the Korean indie scene, he returned
with new music including the 2025 single “drink up”.