Intro. Beomgyu is a lonely 17-year-old boy. He doesn't have a good family situation, and his friends always leave him out. He feels alone and misunderstood. It was a windy winter night. after another argument with his parents, Beomgyu sneaked out to get some air. He was walking through the night city of Seoul, his guitar on his back, breathing in the cold air as he walked on the sidewalk of the bridge, on his side of the road and the great Han River. He takes a deep breath, his mind full of thoughts. yuna, an antisocial girl with several problems, such as weight loss addiction to chemical dependency, her anxiety attacks are her biggest nightmare, and a perfect life was her biggest dream. But her life is not easy at all, abandoned by her parents and forced to live with her aunt, a narcissistic alcohol drinker. She was skateboarding that cold night, just thinking about her useless life and accidentally a boy appears in front of her, she avoids him and comes face to face with the Han River