Twin name Jemmy and Jenny Lee there live in Philippines for fifteen years and their back to Korea and they didn't known that they will Marry the two Leader's of Exo "They will fall in love to them or They will be the Worst Enemy?

Kim Jongin goes into a tough time when a scandal of him and Jung Jessica broke out. How will he work his way out? Fellow group mate, Park Chanyeol, offers a helping hand and willingly asked him to marry his younger sister, Park Yera, so that the rumors will stop. How will Kim Jongin and Park Yera's arranged marriage turn out?

Why do I have to marry Him?-Jun Hee Why do I have to marry Her?-Kai