Han In Sang and Seo Bom are young and in love, despite their vastly differing social and economic backgrounds. To make matters worse, Han In Sang mistakenly flings himself upon Seo Bom, setting off an amusing cascade of events that ripples through the upper-crust Han clan and the down-to-earth Seos. Will this young couple be able to weather the storm and do what's right for their baby despite the conflicting emotions of love and duty?