Twenty years after their divorce, the estranged couple reunited at their beloved son's graduation ceremony. Despite it being a joyous occasion, they started a huge argument in front of their son and swore never to see each other again. However, upon returning from his graduation trip, their son suddenly announced that he was getting married. Just when they thought their son had passed the bar exam and secured his future, he declared that he would help with his fiancée's inn. To stop their son's wedding at any cost, the formerly hostile couple decided to join forces temporarily...
