Last Summer

Years after Ha-gyeong cut her childhood friend Do-ha out of her life, she spots his name on the deed of her house, which sparks a bitter legal battle.

Despite Ha-gyeong's annoyance at him, Do-ha makes changes in the house. When a storm floods the basement, Ha-gyeong races to save a trove of memories.

Ha-gyeong reluctantly agrees to work with Do-ha on a major high school project. The appearance of a constellation serves as a reminder of the past.

After attempting to quit the project, Do-ha confronts Ha-gyeong about leaving the Peanut House. Later, the two team up to seek local leaders' approval.

Ha-gyeong and Do-ha settle into a new living situation and continue working on the Patan High project. But their mutual rival Nam-jin causes trouble.

At an unexpected lunch date, Ha-gyeong makes a surprising discovery. Later, during a planning meeting, she stands up to Director Jeon.

Do-ha's resentment over Ha-gyeong's new relationship grows. Seul becomes concerned after Seung-taek experiences pain during his hockey match.

Do-ha takes a confused Ha-gyeong out for the day. But while struggling to express her feelings, her drinking leads to a series of embarrassing errors.

Secrets unfold as Ha-gyeong breaks up with Su-hyeok and finds herself entangled with Do-ha. A double date at an amusement park deepens their rapport.

Do-ha's long-kept secret finally comes to light as tears, laughter and memories of Do-young fill the Peanut House.