Kim Do Yeon, an actor and singer, has recently released the track “Midnight Sky” for the drama series 'Heesu in Class 2' soundtrack, which is adapted from a webtoon. The song captures the bittersweet essence of youthful romance, expressed through Kim Do Yeon's soft and heartfelt vocals, reflecting the excitement and uncertainty of love. Kim Do Yeon, known for her past roles in I.O.I and Weki Meki, also appears in the drama as the character Choi Ji Yu. Following the disbandment of Weki Meki, she has pursued further studies in London and marked her theatrical debut with the play ‘Anna X’.