>Both Makjang
> The main leads are in love with the same person
> The second main lead married the person that the main lead loves
>Eun Jo and Yi Soo have character development
>Eun Jo becomes Hwang Ga Heun and Yi Soo becomes Jun Yoshimura to hide their real identity and to plot revenge on the people who were behind their suffering
>Eun Jo and Yi Soo's father was killed by someone else
> The main leads are in love with the same person
> The second main lead married the person that the main lead loves
>Eun Jo and Yi Soo have character development
>Eun Jo becomes Hwang Ga Heun and Yi Soo becomes Jun Yoshimura to hide their real identity and to plot revenge on the people who were behind their suffering
>Eun Jo and Yi Soo's father was killed by someone else
>Both Makjang
> Both main lead suffered in the beginning
>Both main lead wants to revenge the death of their parent
>Both main lead and second main lead in love with the male/female main lead
>Both second main lead married the male/female main lead
>Both main lead are being helped by the person who adopted them
>Both main lead changed their name and hid their identity - Kang Yi Kyung -> Seo Jeong Ah , Han Yi Soo -> Jun Yoshimura
>Both stories have good elements of revenge
>Both main lead are witty
> Both main lead suffered in the beginning
>Both main lead wants to revenge the death of their parent
>Both main lead and second main lead in love with the male/female main lead
>Both second main lead married the male/female main lead
>Both main lead are being helped by the person who adopted them
>Both main lead changed their name and hid their identity - Kang Yi Kyung -> Seo Jeong Ah , Han Yi Soo -> Jun Yoshimura
>Both stories have good elements of revenge
>Both main lead are witty