Sister Dayoung Kim is a member of Miracle Junior that is part of the Performing Arts Committee of the church. She attends Yewon Middle School. On July16, 2017 she attracted the attention of many people when she played the trumpet in the 12th Gwanak Alumni Periodical Concert held by Seoul National University Music College. This concert is held in the Concert Hall of Seoul Arts Center and was broadcast on Culture News of SBS on September 2.

Sister Kim was given the opportunity because she had won the 20th Gwanak Performance Competition of Seoul National University Music College. She also had won the 29th Students Competition of Music Association of Korea and the 13th Gwanak Competition hosted by the Nation's Music College Wind Orchestra Association. She is growing up as a competent person and musician giving glory to God.