"Warning: Mature content: This manga contains materials that might not be suitable to children under 17. By proceeding, you are confirming that you are 17 or older."Grand duke Rosalind Idris Apeluden, the current emperor's only brother-in-law. He received a beautiful slave slave as a gift from his close friend. Unable to release the wounded prisoner, Rosalind gave him the name Fenrir and nursed him by his side. Fenrir, who begins to open up to Rosalind after a while, begins to make her his only companion in life / The Grand Duke's Pet / The Archduke's Pet