The story of 4 couples from the 2 richest family in Korea, the Jung’s and Kim’s  family.  Kim Jaejoong and Kim Heechul are twins brother who got married with Yunho and Hankyung for two years, the Jung eldest and second son. Jeajoong want to have a child but not Yunho. Hankyung also wanted to have his child but Heechul refuse. While Kim Junsu  is engaged with Yoochun. Junsu always get angry when some girls try to flirt with Yoochun and he end up apologizing to Junsu and stand with his jealousy.  The magnae of both family, Kim Kyuhyun and Changmin like each other but never admitted it and they keep arguing every time they meet.

Even though the family look happy and have everything but there are a lot of problems occurs.Both Mrs. Jung & Mrs. Kim hate each other because of what, only they know about it. But they never hate their son relationship while they love to see their relationship.They both also love their son in law very much. What the problem and how will they solve it.?Will their story will have a happy ending?