This is the episode which finally sparks off the relationship between Chul Soo and Jo Anna.
Anna was half drunk and in a reflective mood after a quarrel with Billy, her husband. Her expression while she reminiscing about Chul Soo's tirade, in a previous conversation, was one of hurt and pain. Life must be tough for this rich a rich girl. There must be a yet to be revealed side story on how Anna ended up being the bitch she is today.
Anyway, in her anger, she flung her wedding band away. While trying to retrieve it, she falls into the sea and lost her memory. This is poetic justice since she had just pushed Chul Soo overboard earlier. It so happens that Anna was admitted into the hospital where Chul Soo was recuperating from his earlier "accidental" fall off Anna's yacht. Counting his monetary loss due to the atrocities meted by Anna on him, Chul Soo decides to teach Anna a lesson by telling her that she's his live-in girlfriend. He even pointed out her mole on her bust when challenged by the indignant Anna. What Chul Soo wants is for Anna to be a cleaning"ahjumma", or auntie, who will help to look after his nephews and household chores.
Pandemonium erupts when Anna sees the state of Chul Soo's house. It's really hilarious to see Anna getting her just desserts for all the mean stuff she has done so far. But don't bet on that fact that she will humbly obey Chul Soo's wishes. Chul Soo will find out that Anna, with or without her memory, is one tough nut to crack.
Another interesting development is the introduction of a new girl - Oh Yoo Kyung (Park Han Byul). This, extremely, sweet looking girl appears to be Chul Soo's ex-love. Can't tell what part she's playing in the story yet, but I am sure her appearance will add a much needed dimension to the current simple Chul Soo-vs-Anna storyline.