Romance Between Regents ⟨Official⟩

As a reasonable Regent, Yun Su always pays his debts. The most important debt, is the one he owes his political opponent who has been standing against him for years, who tried to protect him even when dying. But this person is rich, kind, loyal, and enjoys high status. Apart from marrying him, Yun Su can't think of any other way to repay him.