Remus Lupin was one of Kingsley's best friends. They had many years together working with the Order of the Phoenix. Between the wars, they kept in touch. When Remus had very few allies in the world due to his condition, Kingsley remained close. She knew it couldn't have been easy for him to put aside his personal feelings about the werewolf that was responsible for biting one of his best friends as a child. The wizard offered her a smile that seemed a bit forced.