Ji Ho-geun

After the sudden death of his older brother, who loved jazz, Han Tae-yi loses his passion for music and wanders for a long time. Yoon Se-hun, a transfer student, appears and gets on Tae-yi's nerves by playing jazz songs his brother liked in the school practice room. Although Se-hun is a classical music major, he secretly admires jazz. Se-hun and Tae-yi often argue over using the practice room, where they learn more about each other, and the relationship gets more complicated...

After his jazz prodigy brother's death, Tae-yi loses interest in life. Se-heon, a passionate new student, rekindles memories of his brother through his music. Se-heon suspects a connection. But his return stirs tensions.

Ju-yeon subs in on an R-rated dating reality show. Intimate contact is mandatory and bedmate swaps every night! Ex-boyfirend Inho, nice Jae-hee, and sexy Se-heon is waiting for her in the sharehouse. And their exes start moving in... Participants approach her through a moral-bending rule. Romance vs Money, Instinct vs Reason. Ju-yeon's shaky decision-making begins.

Ha Yeon-woo, a popular low-class guy, has only one girl, So Yeon, the love of his dreams, in his heart. After touching Oh-dong's nerves by mistake, he is put in danger, but Hwigeon and Cheon Ilhong save him to use him for their revenge on Byeok Family. Yeon-woo forcibly becomes a servant in Byeok Family to save his sister taken hostage, and there he reunites with Oh-dong and So Yeon.

Driven to the edge by a life falling apart, Ha-yun makes a desperate choice: selling herself to Jun-hyeok, the man she has secretly loved for years. To her, it’s a heartbreaking end to her unspoken crush, but to him, she’s just a "bought woman" to be toyed with and humiliated. However, once her true identity is revealed, his cold-blooded contempt ignites into a dangerous, dark obsession. Now, he refuses to let her go. Can they survive the twisted fate sparked by secrets and raw desire?

Hana is murdered after witnessing her husband Jinho’s affair with her friend Yerin, but she ends up traveling back in time. Determined to get revenge, she takes a job as Dohoon’s secretary, Yerin’s fiancé, and sets out to seduce him. As she digs for information on Jinho and Yerin, she grows close to Bae Shinwoo, finding herself caught in a love triangle. After Yerin’s actions create a rift between Hana and Dohoon, she pulls away from him but, with Shinwoo’s help, uncovers the evidence that could bring down Jinho and Yerin. When Yerin kidnaps and attacks Hana, Dohoon takes the hit in her place, and Hana realizes his true feelings. Now that her revenge is complete, Hana must choose between Dohoon and Shinwoo.