简介：Webrokeup,congratulateme.　　Oneday,Chan-yeongandYoon-heewhohavebeenmarriedforover10years,getdivorced.Thisdivorcebecomesamysterytoeverybodysincetheywereknowntobealovebirdcouple,whowastheidealmodelcouplefornewlyweds.　　It’sbeenoneyearafterthedivorcebutChan-yeongandYoon-heestayasgoodfriends.Nobodycansaythattheyareadivorcedcouple.It’sjustadifferenttypeofcouple,likeweekendcouplesorcoupleswhorespecteachother’sprivacyperfectly.　　Thisisthepurehappiness,butwhywearelookingatdifferentpaths?　　Oneday,Yoon-heemeetsherfriend,Seon-yeong,whoshecouldn’tmeetforalongtime.Seon-yeongdecidestostayinYoon-hee’shouseforawhile;theappearanceofSeon-yeongbringsanewopportunityforYoon-heetomakeanewfamily,withhersonWon-e.　　IfIknewwhywebrokeup,wewouldn’t.　　Chan-yeong,visitsYoon-hee’shousetocelebrateWon-e’sbirthday.HeeventuallyfoundoutthatSeon-yeong,wholivesinhisex-library,isplacinghimselfforYoon-heeandWon-e……