▁from ▁the ▁household . ▁ ▁Sim u ▁Li u ▁as ▁Jung ▁Kim , ▁ 2 4 ▁at ▁the ▁start ▁of ▁the ▁series . ▁Mr . ▁and ▁Mrs . ▁Kim ' s ▁son ▁and ▁Jan et ' s ▁brother . ▁Jung ▁works ▁at ▁Hand y ▁Car ▁R ental , ▁where ▁he ▁is ▁promoted ▁to ▁assistant ▁manager ▁at ▁the ▁beginning ▁of ▁the ▁series ▁but ▁returns ▁to ▁his ▁former ▁job ▁after ▁an ▁attempt ▁at ▁moving ▁to ▁another ▁company ▁is ▁sc utt led . ▁He ▁was ▁a ▁reb elli ous ▁te en ager ▁who ▁had ▁engaged ▁in ▁pet ty ▁street ▁cr imes , ▁ear ning ▁him ▁a ▁brief ▁st int ▁in ▁ju ven ile ▁det ention , ▁but ▁has ▁since ▁clean ed ▁up ▁his ▁act . ▁He ▁was ▁k icked ▁out ▁of ▁the ▁family ▁home ▁by ▁Mr . ▁Kim ▁after ▁ste aling ▁from ▁him ▁and ▁remains ▁est r anged ▁from ▁his ▁father ▁though ▁he ▁is ▁still ▁in ▁contact ▁with ▁the ▁rest ▁of ▁the ▁family , ▁and ▁gradually ▁re connect s ▁with ▁his ▁father ▁over ▁the ▁course ▁of ▁the ▁series . ▁Andrew ▁Ph ung ▁as ▁Arnold ▁" K im che e " ▁Han , ▁ 2 5 ▁at ▁the ▁start ▁of ▁the ▁series . ▁Jung ' s ▁best ▁friend , ▁co - worker , ▁ro omm ate , ▁and ▁former ▁partner ▁in ▁crime . ▁He ▁is ▁promoted ▁to ▁assistant ▁manager ▁after ▁Jung ▁initially ▁leaves ▁Hand y ▁Car ▁R ental ▁at ▁the ▁end ▁of ▁Season ▁ 2 , ▁now ▁serving ▁as ▁his ▁superior . ▁ ▁N icole ▁Power ▁as