Sihyuk lost his parents in a sudden car accident and is now left with his younger brother Siha who is still a child. At their funeral, his family gossiped about the two brothers.

“What shall we do with those two? Who's going to care for them?”
“Oh my, he’s still a college student, how could he raise his little brother?”
“I heard that there was insurance money?”

In the midst of the chaos, Siha wailed — “Brother. Brother. Waaah!”

Siha cried out his first word perfectly. He called for his "brother," not his "dad" or "mom." Sihyuk then wrapped him in an embrace and swore to protect him.