Gay Romance: Priests Cat Diary - Redemption of the Tyrant King - Fantasy BL Romance with Reborn Priest & Lion-Hearted Ruler #938806

The Child of Destiny, who was meant to rise as a great emperor, has turned into a Tyrant？ My own ancestor is about to die？ …And I, too, will cease to exist？
To save his ancestor’s life and ensure his own survival in the future, Fernando was left with no choice but to return to the realm he had inhabited in his past life — the ancient Kingdom of the Sea — to rescue the man who was destined to become a great emperor but, having been warped in childhood, grew into a ruthless Tyrant.