Park Jae-won's first day of vacation starts with a spontaneous singalong in a sunlit van and ends with fireworks — and Yoon Seon-a by his side.

Jae-won teaches Seon-a how to surf. The two give in to their feelings, but Jae-won feels betrayed when he wakes up to find Seon-a with someone else.

Seon-a lets misunderstandings cause a rift between her and Jae-won. Wanting to know how she feels, Jae-won asks Seon-a to meet him by a certain hour.

Seon-a and Jae-won's whirlwind romance abruptly ends when he rushes to Seoul for a work emergency. She never calls, but he still wears his ring.

With film developed from Jae-won's cameras, Lee Eun-o fondly looks back at their memories. The photographer recognizes the man in the photo.

Choi Kyeong-jun and Suh Rin-i share their friends-to-lovers story. Almost running into Jae-won, Eun-o reveals the second reason behind their breakup.

Jae-won drunkenly visits the police station to file another report on Seon-a, the thief who stole his cameras and his heart.

Desperate to get over Seon-a, Jae-won seeks help and talks about the time she appeared in his dream. He catches her off guard at their meeting place.

At the police station, Jae-won discovers the truth and a world of hurt after reuniting with Seon-a, who reluctantly reveals her real name.

Eun-o's emotional fallout puzzles Kang Geon. Rin-i unleashes her fury on a man responsible for her friend's heartbreak and disappearance.

Kyeong-jun tells a curious Jae-won details about Eun-o’s life, then invites him to a gathering at her home later that night.

In the past, romantic betrayal and professional setbacks led Eun-o to try out life as Seon-a and meet Jae-won. She regrets it all now.

Eun-o wakes up in Jae-won's home the morning after a boozy night. Once again, they find themselves together in a car on a rainy day.

Kyeong-jun floats the idea of Rin-i pursuing a career instead of more part-time jobs. Eun-o's hidden feelings for Jae-won are unexpectedly revealed.

Earnest conversations bring closure to former couples. Eun-o comes clean about both her secret life as Seon-a and relationship with Jae-won.

Rin-i is dismayed by Kyeong-jun's honest opinion of her lifestyle. Telling him about all her flaws and fears, Eun-o asks Jae-won if he can accept her.