Sex man and woman we have a good match ~ 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 met my ex-boyfriend. After a long reunion, they fall into the old thoughts and go into the room to 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.