▁PS ▁Part ner , ▁playing ▁an ▁asp iring ▁singer - song writer ▁trying ▁to ▁get ▁over ▁a ▁break up , ▁who ▁becomes ▁the ▁wrong ▁recip ient ▁of ▁a ▁phone ▁sex ▁call ▁from ▁a ▁woman ▁( play ed ▁by ▁Kim ▁Ah - jo ong ) ▁trying ▁to ▁s edu ce ▁her ▁boy friend ▁into ▁propos ing . ▁Ji ▁S ung ▁said ▁he ▁found ▁the ▁script ▁intr igu ing , ▁despite ▁the ▁dis com fort ▁of ▁appearing ▁in ▁bed ▁scenes . ▁And ▁after ▁he ▁saw ▁Love ▁& ▁Other ▁Dru gs , ▁he ▁wanted ▁to ▁be ▁in ▁a ▁movie ▁that ▁port rayed ▁a ▁rom antic ▁relationship ▁in ▁a ▁real istic ▁manner . ▁ ▁In ▁ 2 0 1 3 , ▁Ji ▁S ung ▁star red ▁in ▁ ▁mel od rama ▁Secret ▁Love . ▁He ▁said ▁he ▁chose ▁the ▁drama ▁because ▁he ▁found ▁the ▁script ▁" f resh , ▁honest , ▁and ▁s oph istic ated ." ▁He ▁played ▁a ▁cha ebol ▁" bad ▁boy " ▁whose ▁girl friend ▁is ▁killed , ▁then ▁falls ▁for ▁the ▁woman ▁who ▁went ▁to ▁prison ▁for ▁the ▁crime . ▁Ji ▁S ung ▁next ▁appeared ▁in ▁Conf ession , ▁a ▁ 2 0 1 4 ▁ne o - no ir ▁film ▁that ▁brut ally ▁expl ores ▁the ▁after math ▁of ▁three ▁men ' s ▁friendship ▁after ▁the ▁death ▁of ▁one ' s ▁mother . ▁▁ 2 0 1 5 – present : ▁Career ▁res urg ence ▁In ▁ 2 0 1 5 , ▁he ▁reun ited ▁with ▁Secret ▁Love ▁co - star