A.C.E signals their comeback with individual 'Effortless' MV teasers featuring Wow and Byeongkwan

A.C.E's Byeongkwan officially discharged from the military

A.C.E's Byeongkwan to enlist as a member of the KATUSA

A.C.E's Jun tests positive for COVID-19; Byeongkwan, Chan, and Beat Interactive staff undergoing testing

A.C.E's Byeongkwan is the new MC for After School Club

A.C.E unveils 'Changer: Dear Eris' teaser images for members Byeongkwan and Chan

A.C.E roll out more heart-fluttering teaser images of Jun, Byeongkwan, & Wow for 'Changer: Dear Eris'

A.C.E release youthful teaser photos of Donghun, Byeongkwan, & Chan for 'Changer: Dear Eris'

A.C.E's Byeongkwan suits up in moon concept images for 'SIREN:DAWN'

A.C.E's Byeongkwan rocks bold all-red outfit for 'SIREN : DAWN' individual concept teaser images

A.C.E's Wow, Donghun, and Byeongkwan are ready to take you “Higher” in alluring new concept photos

A.C.E's Byeongkwan to not attend upcoming 'G★K-Pop' concert after contracting shingles