Choi Ji-woo
On his way to school one day, Joon-sang's classmate Yoo-jin (Choi Ji-woo), while sitting next to him on the bus, falls asleep on his shoulder. After a few weeks, the two forge a close friendship. One day, Joon-sang convinces Yoo-jin to escape school together. On the way, Joon-sang soon falls in love with Yoo-jin, who opens her innocent heart to him.