18 Again

Basketball was all Dae-yeong knew until he fell in love with Da-jeong. 18 years later, Da-jeong wants a divorce. After a blackout at the gym, people treat Dae-yeong like a student.

Adult Hong Dae-yeong, turned high schooler Go Wu-yeong, now attends the same high school as his children, whose behavior surprises him. He soon encounters Da-jeong at the school.

Wu-yeong challenges his son's bully to a fight. Da-jeong passes the JBC newscaster exam. While reporting, she gets doused by a massive amount of water and the incident goes viral.

During a one-on-one interview with Ji-hun, Da-jeong experiences an astounding situation. Wu-yeong loses it when his daughter suddenly faints and collapses at school.

Wu-yeong wants to know why Da-jeong wants to divorce him, and he suspects Da-jeong and Il-gwon of having an affair. Before he goes to court, he learns a shocking truth.

Wu-yeong feels threatened by Ji-hun and his kind behavior towards Da-jeong. Da-jeong receives a heartwarming present from her number one fan, but who could it be?

Ae-rin learns Wu-yeong's identity and goes to tell Da-jeong. But Wu-yeong's focused on making the basketball team. That night Da-jeong tells him, "I know about everything. You're…"

After hearing a secret about Dae-yeong from Il-gwon, Da-jeong looks at Wu-yeong differently. Meanwhile, Wu-yeong goes to his mother's grave before his basketball match.

Da-jeong tries to expose Il-gwon for his corrupt practices, but the other parents respond lukewarmly. Seeing Da-jeong struggle, both Wu-yeong and Ji-hun try to comfort her.

Wu-yeong saves his child from danger. Meanwhile, Da-jeong makes a decision in the best interest of herself and her family. During an interview, Ji-hun gives an unexpected answer.

Wu-yeong sees Da-jeong smiling beside Ji-hun. Meanwhile, someone confesses their love to Sia. Wu-yeong feels like the two women he loves the most have been taken away from him.

Tensions between Wu-yeong and Ji-hun escalate, with Da-jeong in the middle of it all. Go Wu-yeong is confused. While this goes on, all three of them attend "the Go Go Play Party."

Da-jeong is stunned by Wu-yeong's sudden kiss and leaves. When he tries to explain himself, she pushes him away. Wu-yeong learns something surprising about his daughter.

Da-jeong is overwhelmed after Wu-yeong's astounding confession. A few days later, the full-time newscaster positions are announced. Ji-hun calls Da-jeong's ex-husband Dae-yeong.

Wu-yeong and Da-jeong go on a date. Before the final basketball match, Wu-yeong is scouted by Korea University. Ji-hun tells Da-jeong the story behind his brother's accident.

As "Jeong Da-jeong's Shocking Video" spreads, Da-jeong's life becomes hectic. She asks the culprit why they circulated the video. Will Da-jeong and Dae-yeong find happiness again?