Reply 1988 S01 E20 Goodbye, My Youth. Goodbye, Ssangmundong.

"The year was 1988, a time when it was chilly, but our hearts were fiery, a time when we didn't have much but people's hearts were warm."

While Sun-woo and Bo-ra set out to change their parents' minds about their relationship, juicy gossip about Taek turns up on the news.