1 - One Heck of a Summer Guest

One tedious summer, Do-ha, Ha-kyung's first love, reappears before her. The contract for the peanut house, which had been unsold, becomes entangled because of his name. A heated confrontation erupts, stirring up mutual wounds. Within the crumbling walls, long-buried memories resurface, and their summer rekindles.

2 - The Reason I Returned

Back from a 2-year hiatus, Do-ha refuses defeat and attempts to win back Ha-gyeong’s heart. Old memories from a summer past unlock as the rain pours.

3 - The Big Triangle of Summer

The Patan High School Project reunites the two. Under the Summer Triangle, first love emerges once more as Do-ha reveals his heart to Ha-gyeong.

4 - The 100th war has begun

As secrets unfold, past grievances reach a breaking point. Do-ha and Ha-gyeong begin a long and arduous battle over her beloved Peanut House.

5 - A house needs people

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.

6 - 21 days to get to know you

Memories resurface as a shooting star lights the sky. Past and present collide as a confession is evaded. The name Baek Do-yeong casts a long shadow.

7 - The Dog-like Summer Guest

8 - The Last Stage

9 - Summer Behind Scenes

10 - A house needs people Part 2

11 - Episode 11

12 - Episode 12