Go Yoon-jung is 10cm 'but' in addition to Lee Seung-cheol's Music Video, and Petomeco's 'No.5 (Feat). Crush), and the confession of the upbringing material.
Meanwhile, Lee Seung-cheol's "I Love You Much" was announced as an OST of Web toon "Moonlight Sculpture". Doko (DOKO) participated as a lyricist, composer and producer, and Music Video was directed by Lee Rae-kyung.