Nina the Starry Bride GoGoAnime

Nina never thought she would be in the middle of a royal deception. She has had a rough start to her life as an orphan in the castle town of Fortna. But when Prince Azure notices that her deep blue eyes resemble those of the late Princess Alisha, he orders her to take her place and marry the Prince of Galgada. Despite this uncertainty about fate, she finds happiness in knowing that someone finally needs him.