Luhan proposed to Seohyun about a 2 years ago and they got married around 1 year ago and had their first baby boy 6 months ago.
Their relationship has been going pretty smoothly, only quarreling and getting into small squabbles once in awhile but nothing to serious.
Luhan works as both a tuition teacher and a school teacher in order to support both him and Seohyun.
Meanwhile, Seohyun quit her job in order to take care of her child, Zhuhan.
Sehun, her neighbor, just moved in right next to Seohyun’s house, Seohyun and Sehun begin talking and spending a lot of time which each other while Luhan’s at work. Will Luhan be able to sustain their relationship or will Sehun win over Seohyun’s heart?