Hoshi Furu Yoru no Kiseki

From fictiondb: Once, Zack and Lauren Alexander were the perfect couple -- but they haven't seen each other for three years! Still it isn't long enough for either to forget how they lost their tiny daughter, and then their marriage. They both know it will take a miracle to bring them back together. A miracle in the form of an eight-year-old orphan. When Zack discovers that he and Lauren are official guardians to Arabella, he vows to give the little girl a new family. But first he must persuade Lauren to give him a second chance! A new year, a new start to their marriage. If only he can convince Lauren he's never stopped loving her.