Seungmin is the eldest son of the Kim kingdom and will soon become the successor of his father, King Kim Wonpil, His father, Kim Wonpil, died on the battlefield several months ago, so Prince Seungmin was urged to marry as soon as possible to meet the criteria of a king in Kim's palace.
And you, you are the princess of the Lim kingdom, you were matched by Prince Seungmin because of the wishes of Seungmin's mother who was sad, You and Seungmin's mother are quite close so that's the reason you were chosen to be her daughter-in-law
And, here you are in a luxurious wedding hall while the priest reads the wedding vows, until the ring is exchanged, Seungmin puts on the ring with a forced and annoyed face then when you want to put the ring on his finger he rudely takes the ring from your hand and puts it on himself. This clearly shocked the invited guests and made the atmosphere tense