he e , ▁Su y un , ▁Y unk you ng , ▁So he e ▁and ▁D ah y un . ▁The ▁group ▁was ▁announced ▁in ▁July ▁ 2 0 1 9 ▁and ▁deb uted ▁on ▁August ▁ 7 , ▁ 2 0 1 9 ▁with ▁their ▁first ▁extended ▁play ▁P ink ▁P unch . ▁ ▁History ▁ ▁Pre - de but ▁J uri ▁was ▁cast ed ▁as ▁an ▁A KB 4 8 ▁ 1 2 th - gener ation ▁tra ine e ▁through ▁an ▁aud ition ▁in ▁ 2 0 1 1 . ▁She ▁was ▁introduced ▁to ▁the ▁public ▁through ▁A KB 4 8 ▁Team ▁ 4 ▁in ▁March ▁ 2 0 1 2 . ▁Her ▁first ▁television ▁appearance ▁in ▁Korea ▁was ▁in ▁the ▁ 2 0 1 8 ▁reality ▁competition ▁show , ▁Produ ce ▁ 4 8 . ▁Su y un ▁and ▁So he e ▁were ▁introduced ▁to ▁the ▁public ▁as ▁representative ▁tra ine es ▁of ▁W ool lim ▁Entertainment ▁through ▁Produ ce ▁ 4 8 ▁as ▁well . ▁In ▁March ▁ 2 0 1 9 , ▁J uri ▁was ▁confirmed ▁to ▁have ▁signed ▁with ▁W ool lim ▁Entertainment ▁to ▁purs ue ▁her ▁career ▁in ▁Korea ▁by ▁debut ing ▁as ▁a ▁member ▁of ▁the ▁company ' s ▁new ▁girl ▁group . ▁Two ▁months ▁later , ▁J uri ▁officially ▁graduated ▁from ▁A KB 4 8 . ▁On ▁July ▁ 2 2 , ▁W ool lim ▁Entertainment ▁released ▁a ▁motion ▁clip ▁of ▁Ro cket ▁P unch ' s ▁logo ▁and ▁there ▁was ▁spec