EXchange

Ex-couples reunite but have to pretend like they don't know their ex as they enter one by one.

Ex-couples choose their first date partner. They get a chance to ask questions to the partners's ex.

Among the entangled feelings, some were happy, some were hurt. Where will their hearts head to now?

New couples go on dates at placese where they spent time with their exes. Can they have a good time?

Ex-couples discuss their moments of parting. Relationships become more and more complicated.

People start getting honest about their exes. Hye-sun's confession has everyone surprised.

A love triangle is at its boiling point. Someone is more confused, someone has made up their mind.

Can a couple start a new story 11 years after their breakup? Can everyone stick to their choices?

The group goes on a trip to Jeju. New sensations arise and couples focus on each others' feelings.

People are given 20 minutes to talk to their exes privately. Someone cries and the air changes.

Secrets are gone. With everyone's feelings out in the open, people start eyeing each other.

The ex-couples go on a date. Then a game of truth happens, revealing unexpected new stories.

It's the day before the final decision. People strive to change the ending of their relationships.

Hoping the other's heart has moved as well, the eight makes a final confession about their love.