After years of studying in America, Choi Hyun Wook returned to Korea for the holidays. As he sat in the taxi, he gazed at the familiar streets, his heart racing at the thought of meeting his new sister it is you—a girl known for being cold and reserved.

"I hope she isn't too awkward," he thought. "I just want to get to know her."

When the taxi finally stopped in front of the house, he took a deep breath, ready for the long-awaited first meeting.