

On a torrential rainy night, Lewis Kane is accidentally hit by a dump truck and sent straight to the underworld. A judge is fretting over problems plaguing the three realms when Lewis is mistakenly brought in. The judge notices Lewis glowing with golden light—the mark of someone with immense karmic merit—and sees hope. He appoints Lewis as the liaison officer for the three realms,serving as the underworld’s representative in the mortal world to help meet their quotas. When Lewis refuses, the judge reveals that Lewis is cursed with nine lifetimes of loneliness, and this is his ninth life. If he doesn’t accept the position, he’ll be trapped in endless reincarnations of solitude. Terrified, Lewis throws a tantrum, begging the judge to grant him a life of romantic fulfillment this time around. The judge tosses him a smartphone, explaining it can connect directly to the underworld, then sends Lewis back to the mortal realm. And so,Lewis’ destiny begins to shift because of that one mysterious phone.

Betrayed by her boyfriend and half‑sister, Ava Hart is forced by George Hart, who is desperate to secure an investment, into Mr. Warren's bed. Seizing a chance to escape, Ava runs into the male lead. He recognizes her as the girl who protected him in their childhood. Drugged, Ava mistakes him for an escort. After a night together, she leaves money behind and departs. Back home, Ava is held captive. Learning of her plight, the male lead confronts Mr. Warren and helps her flee the Hart family. Homeless, Ava goes home with the male lead, who proposes to her. Believing marriage will free her from George Hart's harassment, she accepts. As their feelings deepen while living together, the villain conspires with his uncle to kill the male lead's father. To keep Ava safe, the male lead publicly humiliates her at his father's funeral. Heartbroken, Ava leaves to build her own career. The male lead secretly supports her from afar. Meanwhile, Ryan Carter, who admires Ava, pursues her fiercely. Ava later discovers she is pregnant. When the villain finds out, he kidnaps her to threaten the male lead. Risking everything, the male lead rescues Ava. They finally resolve their misunderstandings and start a new life.

Ji-Yeon, the wanna-be among the theater majors at school, dreams of a bright future after being cast in a famous director's work. However, her life shatters when her best friend Yu-Mi spreads a deepfake video of Ji-Yeon having an intercourse with Professor Park, and on top of that, has an affair with Geon-Woo, Ji-Yeon's boyfriend. Determined for revenge, Ji-Yeon teams up with the teaching assistant Su-Ho, who exposes Yu-Mi's true identity to her.