I Am SOLO: Love Forever

Five men and five women whose love had not worked out previously have come to find love again. They are delighted to meet former cast members from the show. After entering the guesthouse and unpacking their things, the solos pair up randomly and start off by introducing their partner to the group.

The singles gather for a barbecue party on the first night at the Solo Guesthouse. After the dinner, the men get to choose a woman to go on a night walk with. Jung Soo from Season 5 and Sun Ja from Season 15 have a romantic date on a rooftop. Jung Sook from Season 8 and Young Chul from Season 13 hit it off on their first wine date at a cafe. Young Ho from Season 15 and Jung Sook from Season 18 have a jovial time over chicken and beer.

Young Sook from Season 19 has a night-out date with Kwang Soo from Season 18 and Young Soo from Season 21. The following day, Young Sook makes coffee for Young Soo, who asks her to take a walk with him. Young Ja from Season 12 has a 1-on-1 talk with Jung Soo from Season 5. Later, Sun Ja from Season 15 goes grocery shopping with Jung Soo from Season 5 and Kwang Soo from Season 18. This time, the women get to choose a man to go on a lunch date with, and Jung Soo ends up having a 3-on-1 date.

Young Soo from Season 21 and Young Sook from Season 19 head out for a date with their arms linked and romance in the air. Jung Soo from Season 5 has multiple dates with Young Ja from Season 12, Sun Ja from Season 15, and Jung Sook from Season 18 but is torn between 2 women. Back in the guesthouse, Young Chul from Season 13 and Kwang Soo from Season 18 talk with Jung Sook from Season 8, who got back early from her date with Young Ho from Season 15. Later, the singles carry out four different missions for tickets to the super date.

Kwang Soo from Season 18 chooses Jung Sook from Season 8 for his date offered as a consolation prize. Jung Soo from Season 5 asks Jung Sook from Season 18 and Sun Ja from Season 15 out on a cafe date and lunch date, respectively. Young Soo from Season 21 has a romantic lunch date with Young Sook from Season 19. Being the last to decide, Young Chul from Season 13 asks Jung Sook from Season 8 out on a date. He also has breakfast with Young Ja from Season 12.

Young Soo from Season 21 and Young Sook from Season 19 envision their future as a couple. The date between Young Ho from Season 15 and Jung Sook from Season 18 gives off a friendly vibe. Young Chul from Season 13 and Jung Sook from Season 8 find common ground and feel drawn to each other. Feelings fade for Jung Sook from Season 18 when Jung Soo from Season 5 brings up "age" as an important factor to him.

The men choose a woman for a late-night date. Feeling torn between two women, Jung Soo from Season Five doesn't choose anyone for the date. Young Chul from Season 13 and Jung Sook from Season 8 feel attracted to each other. Young Soo from Season 21 and Young Sook from Season 19 share their feelings ahead of the final selection. Young Ho from Season 15 and Jung Sook from Season 18 have a fun, light-hearted date.

Jung Soo from Season Five tries to win Jung Sook from Season 18's heart back. But she feels that the timing is off. Jung Soo further expresses his genuine feelings for Jung Sook on a morning coffee date. Young Ho and Sun Ja feel anxious about seeing them together. Meanwhile, Jung Sook from Season Eight feels bothered to see Young Chul from Season 13 taking care of Young Ja from Season 12 and addresses him about it.

Jung Sook from Season Eight tells Young Chul from Season 13 that she feels burdened by being a couple through the final selection. Being a long-distance couple, Young Soo from Season 21 promises to be dedicated to Young Sook from Season 19. Jung Sook from Season 18's heart sways upon hearing Jung Soo from Season Five express his true feelings.