Mi-hee left alone after divorcing her husband. Needing a place to stay for a while, she stays at Soo-yeon's house, her best friend, for a while. Thanks to Soo-yeon's husband, Geun-ho, who treats her warmly there, she stays comfortably. One evening, we all have a drink asking for goodbye... Geun-ho gets drunk and goes to Mi-hee's room, not his wife, and tries to hug her...
Unlike Seok-ho, who is happy to meet you, Jeong-hun is uneasy about Su-jin's wife, Sujin. This is because he liked Sujin in the past but couldn't confess because of his seniors. A few days later, Jeong-hun and Su-jin visited the house at the invitation of a senior and reunited after a long absence. They talk alone to confirm their feelings for each other and to share their hot love affairs...
One day on a hot summer day, Suyeon calls an AS engineer because her air conditioner breaks down while exercising at home. But there I meet my ex-boyfriend. After a long time in reunion, they fall into the old thoughts and immediately go into the room and make love. Meanwhile, Eun-jung goes out of the house to dump her husband's luggage. Tae-hwan, a neighbor he met on the road accidentally, takes off Eun-jung's skirt, and they share a hot kiss at Eun-jung's house.