Louie has been grown up under overprotection of his grandmother and butler. His only joy of life is shopping. He comes to Korea due to his grandmother's illness but he lost his memories due to car accident. Then, Bok Sil finds him due to his tracksuit.

Louie and Bok Sil live together in a rooftop house. Louie recognizes his potential shopping skills at the street market when buying household items. While Louie wonders his identity, he receives a call all of a sudden.

Louie tells butler Kim that he likes Bok Sil. Bok Sil goes to her hometown without telling Louie. Joong Won finds out where Bok Sil is and he goes to her. Louie also goes to Bok Sil and he sees Bok Sil with Joong Won together...

Bok Sil takes Louie who wears brother's tracksuit to police office. However, Louie could not remind of Bok Nam and to make matters worse, he lives off Bok Sil. Louie is treated as perverted beggar...

Joong Won takes Bok Sil to his house due to the consecutive murder incidents at Bok Sil's house. Thus, Louie and Bok sil live together at Joong Won's house. Butler Kim learns intuitively that Louie is alive owing to an accidental opportunity.

Secretary Goo calls Louie and Seon Gu feels uneasy about Louie's memory comes back to where. Louie is jealous of Joong Won due to lovely Bok Sil. On the other hand, Il Soon, the chairwoman is curious about whereabouts of Louie's treasure chest.

After the grief of his grandmother, Louie finds his treasure chest under the floorboard of his attic and he watches a video tape. He realizes who is Go Bo Ssi and hires a movie theater for Bok Sil.

Louie and Bok Sil live together in a rooftop house. Louie recognizes his potential shopping skills at the street market when buying household items. While Louie wonders his identity, he receives a call all of a sudden.

Louie looks after Bok Sil secretly by not letting her know about it. One night with heavy rain, Louie goes to Bok Sil's rooftop house, but he sees Joong Won there. A few days later, Bok Sil finds Louie as a homeless person... What happened to him?

Louie and Bok Sil spend happy time together in their rooftop house where their memory is made. Louie tells Bok Sil to marry him and Bok Sil buys a ring to answer him. Then one day, at the company outing, Bok Sil is kidnapped by someone...

At the Goldline company outing, all the employees look for Bok Sil. Ma Ri tells people that Louie is the heir of the Gold Group so that is why Bok Sil is Kidnapped. Then, Louie receives a sudden call from a hospital...

Joong Won visits Bok Sil's house and he finds out Louie there. In Seong tells Louie that Joong Won likes Bok Sil. This makes Louie irritated so he goes to Busan where Bok Sil is going with Joong Won and Ma Ri for their business trip.

The chairwoman of the Gold Group knows that Louie is alive and they finally meet in her house. Louie gets to know his identity that he is the heir of the Gold Group. Louie worries about Bok Sil who is waiting for him so he visits the rooftop house.

Louie does not recognize Bok Sil and he asks who she is. Bok Sil tells Louie her name, but Louie just asks back how close they were before. Still Louie does not remember Bok Sil and he starts to run away when he sees butler Kim.

Louie suffers a car accident on his way to meet Bok Sil. Joong Won brings Louie to his house to live together because he doesn't like Louie to live off Bok Sil. Seon Gu tries to get rid of Louie and Bok Sil before Gold Group inauguration ceremony.

Louie asks Joong Won whether he likes Bok Sil or not. Ma Ri meets Louie in Goldline product planning team all of a sudden, which made Ma Ri very surprised. On the other hand, Louie recognizes his own feeling towards Bok Sil.