Why Should it be you who is my brother?

You can't have any feeling towards your brother!

You can't really choose who to love

And neiher I......

Myungsoo came back from New York after finishing his school and decided just to go to Seoul University. But the one who picked him up from the airport was someone whom he didn't know. And his name was Sungyeol - and he said he was Myungsoo's brother. But seriously, he was the only son in his family. So, what was going on here?!