The Second Reproduction is an otome game, set in the same universe as Queen of Darkness, the circle's first game, as well as serving as a sort of sequel. Christina was the third princess of Almenan, and born in the era of war against the Demons. Having the status of a “Champion”, Christina had countless battle victories upon her shoulders and was feared by the Demon race. Being the most successful of her three sisters, her mother the queen sent her on a secret mission to assassinate the Demon Lord Gardis in return for his ruthless annihilation of the Kingdom of Crofts. Obeying her mother’s orders for the sake of her kingdom, Christina set out alongside with her most loyal knight Lezette to take the Demon Lord’s head, and to bring peace to the land. But they soon discover the Demon Lord and his people are not as ruthless as they have been told all their life.