On June 20 KST, ONF's MK will be discharged after completing his mandatory service with the army. MK entered boot camp on December 21, 2021 and served in the 28th Infantry Division of the Army.

The members of ONF enlisted around the same time, with MK entering basic training first on December 21, 2021, followed by J-Us, Wyatt, Hyojin, and E-Tion. MK will be the first member discharged, followed by J-Us and Wyatt on June 26 and, finally, by Hyojin and E-Tion on June 27.

Before their enlistment, ONF assured their fans that they would return in good health and expressed their desire to serve together and continue performing together for as long as possible. With their comeback expected shortly after the completion of their military service, followers of the band are eagerly awaiting their return.

Since their debut in 2017 with their mini album 'ON/OFF', ONF has become well-known for their hit songs, including "We Must Love," "Sukhumvit Swimming," "Beautiful Beautiful," and "Ugly Dance." With new music and performances possibly on the horizon, the anticipation for the group's return is high.