Young-ho doesn't have any dreams for his life. He has been studying for three years to enter a university. He decides to send a letter to his childhood friend So-yeon. But her younger sister So-hee receives the letter instead of her sick sister. So-hee writes back to Young-ho, pretending to be So-yeon. Meanwhile, So-hee takes care of her sick sister and also runs a secondhand bookstore with her mother.
A young poker player at the top of his game joins a team led by the legendary poker player One-Eyed Jack. While successfully working on a plan to win a huge jackpot, a single mistake puts the entire team in a life-or-death situation.
A success-hungry lawyer finds himself unable to turn his back on a suspicious case involving a child who claims she murdered her brother.
A high school girl, Man-bok, who has to walk for four hours every day back and forth between home and her school due to the congenital motion sickness disorder, happens to begin her training as a speed walking athlete unexpectedly. Through the cooperative training with her friend Soo-ji, whom she meets in the school track and field team, Man-bok discovers her path of life in this heartwarming and touching story.
Jung Yul-hee is a bestselling author often dubbed the 'Queen of Mystery.' After inheriting a house from her father, she relocates to a remote area with her daughter So-hee. Struggling to juggle her new novel and her daughter’s school life, Yul-hee hires Mi-jee, a local girl who has become close to So-hee, as a kind of housekeeper. Mi-jee claims to be a devoted fan of Yul-hee's writing, and at first, everything seems to go smoothly. But cracks slowly begin to form in their relationship.
15-year-old Young-sun, abandoned by her adoptive parents and left with nowhere to go, temporarily stays at the home of Sua, whom she met as a tennis training partner. Young-sun, wanting to stay at Sua's house for a long time, tries hard to become part of the family, but Sua and her family find Young-sun burdensome.