2 0 1 0 , ▁Steph anie ▁were ▁confirmed ▁to ▁sust aining ▁a ▁major ▁back ▁injury ▁and ▁went ▁to ▁US ▁for ▁her ▁recovery . ▁On ▁May ▁ 2 1 , ▁ 2 0 1 0 , ▁The ▁Grace ▁remained ▁with ▁three - members ▁performance ▁My ▁Everything ▁and ▁One ▁More ▁Time , ▁Ok ? ▁at ▁the ▁SM ▁Town ▁Live ' ▁ 1 0 ▁World ▁Tour ▁in ▁Se oul . ▁ ▁In ▁ 2 0 1 1 , ▁D ana ▁and ▁Sunday ▁formed ▁the ▁first ▁sub - unit ▁of ▁the ▁group ▁called ▁The ▁Grace ▁- ▁D ana ▁& ▁Sunday . ▁Since ▁then , ▁the ▁group ▁has ▁been ▁on ▁while ▁all ▁members ▁have ▁continued ▁to ▁focus ▁on ▁solo ▁activities . ▁ ▁On ▁May ▁ 1 5 , ▁ 2 0 1 6 , ▁it ▁was ▁confirmed ▁that ▁Steph anie ' s ▁contract ▁with ▁SM ▁Entertainment ▁had ▁exp ired ▁on ▁May ▁ 1 5 , ▁ 2 0 1 6 . ▁She ▁decided ▁to ▁not ▁renew ▁her ▁contract ▁with ▁the ▁company ▁and ▁continue ▁to ▁promote ▁as ▁solo ist ▁with ▁M af ia ▁Records . ▁ ▁Sub un its ▁ ▁D ana ▁& ▁Sunday ▁On ▁July ▁ 5 , ▁ 2 0 1 1 , ▁S . M . ▁Entertainment ▁announced ▁the ▁formation ▁of ▁its ▁first ▁official ▁sub - group ▁unit ▁of ▁The ▁Grace . ▁Bre aking ▁their ▁ 4 - year ▁hi atus , ▁the ▁du o ▁is ▁composed ▁of ▁D ana ▁and ▁Sunday . ▁Their ▁debut ▁single , ▁" One ▁More ▁Ch ance ▁( 나 ▁