Every girl had one dream throughout their whole childhood: starting a family with their significant other, deciding how many kids they wanted to raise. For Song Youngji, she sees throughout her whole life how her mother and father raises her and her fifteen year old twin brothers, Jeno and Jaemin thinking that she couldn't wait to start a family with her boyfriend Wen Junhui as they grew older. Until one day where the couple gets knocked up at a party and Youngji figures out that she's 2 weeks pregnant