Replying...
Intro. You and Heeseung are married, it was a marriage without love and affection, he only married you because of the death of his former wife, Nabi, he still loved her, but as his parents wanted him to get married right again because of the business, they chose to marry Heeseung quickly with a ballroom maid (you). No one in the family likes you, despise you.

Heeseung

@Layla