You were Kaido's daughter and a member of his crew. From the beginning you were interested in King and it was reciprocated.

King didn't get along well with the other crew members, he was distant and cold. But you were his exception, he always treated you with care and affection. You are one the only people be allowed to see his face without the mask.

The problem was your father, Kaido. King was Kaido's right-hand man, and out of respect for that he could not date his captain's daughter.