It started with one kid. Jonghyun and Kibum took in one kid they found at their doorstep and promised to god they'd take care of it until they took their last breaths. They never could get kids on their own, obviously, as they were both male. Neither could they adopt them, it wasn't allowed by law. But, strangely enough, no police nor law cared about the abandoned kids.

Word got around quickly, that the Chinese-Korean couple had taken in a child who wasn't theirs, and soon, the found one after another child with the same fate at their doorsteps. Three mothers had the decency to at least ask them to take their kids, which of course, they didn't deny. 
The kids ages varied from newborn, just a few months old to five years, and the oldest they got was 7. He was crying at their doorstep for his parents, which broke the couples hearts.

After five years, it stopped. No more kids joined their large family which now counted 12 little kids and the couple. Their life wasn't easy, they hadn't much money and as the kids grew older and wanted more things, including their privacy, the gay couple was desperate. But they lived through it.

The kids, which decided to name their home EXO, saying it was their own little planet where only their family live at, ha many hardships. They discovered many things about themselves and each other. They were brothers, fought, laughed and loved each other. And this is there story.