Pi Seon Ju works as an interior designer in a small neighborhood. She is married to Jeon Nam Jin, who is an ambitious architect. Although Pi Seon Ju is devoted to her husband, her husband falls in love with Jin Sang A, who will become the successor of an architecture company. To further pursue his love and ambitions, Jeon Nam Jin demands a divorce from Pi Seon Ju. After their divorce, Pi Seon Ju decides to start her new life. Meanwhile, architect Kim So U is married to Jin Sang A. Unlike Jin Sang A, he is satisfied with a stable situation rather than being fueled with ambition. Due to his wife's affair with Jeon Nam Jin, Kim So U gets divorced. After meeting Pi Seon Ju, Kim So U experiences a turning point in his life.
Pil-ju, an Alzheimer's patient in his 80s, who lost all his family during the Japanese colonial era, and devotes his lifelong revenge before his memories disappear, and a young man in his 20s who helps him.
Suddenly learning she is terminally ill, Se-yeon asks her husband, Jin-bong the absurd task of helping her find her first love, and he unwillingly joins her search. Along their journey, Se-yeon and Jin-bong are reminded of the most glittering, beautiful moments of their lives.
Hyun, a best-selling writer, has found himself in a slump for a long time. In the meantime, he accidentally meets Yu-jin, an aspiring young writer. Hyun gets confused when Yu-jin confesses his love to Hyun. A 19-year-old student and Hyun’s son, Sung-kyung, who is skeptical about his life, meets Jung-won, a young married woman living next door. Sung-kyung has a good feeling for this freewheeling woman. A pure-hearted man, Soon-mo, who is Hyun’s best friend and also the publisher, meets his friend’s ex-wife.
Ex intelligence agent Ki-heon is tasked with safely transporting Seo Bok, the first ever human clone, who holds the secret of eternal life. Several forces try to take control of Seo Bok to serve their own agendas.