Seo also founded and co-ran a music promotion agency called Open Your Eyes which brought numerous foreign hardcore bands to Korea, including Champion, Outbreak, Terror, Sick of It All, Down to Nothing, Have Heart, No Turning Back, and Bane.
Seo gründete und mitbetreute auch die Musik-Promotion-Agentur Open Your Eyes, die eine Vielzahl ausländischer Hardcore-Bands wie Champion, Outbreak, Terror, Sick Of It All, Down to Nothing, Have Heart, No Turning Back und Bane nach Südkorea brachte.