Throne of the Ghost Emperor (Danny Phantom X Naruto) - Chapter 4

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

Chen Yan travels between worlds, ending up becoming an honorable prince in a medieval fantasy world. Yet this world was not quite as simple as he thought. Witches with magical powers abound, and fearsome wars between churches and kingdoms rage throughout the land.

Roland, a prince regarded as hopeless by his own father and assigned to the worst fief, spends his time developing a poor and backward town into a strong and modern city, while fighting against his siblings for the throne and absolute control over the kingdom. Join Roland as he befriends and allies with witches and, through fighting and even farming, pushes back invaders coming from the realm of evil.

- Description from Novelupdates

A smug smile appeared on her step sister's lips when she finally revealed she was actually pregnant with her mate's child.Her father's futile attempt to apologize, for ignoring her all this time, because he had his own reasons and asked her to understand.A plea of forgiveness from her mate as he begged her not to reject him, claiming it was just a stupid mistake that he shouldn't have made.And to top it off, a cursed alpha from the north, to whom her step sister was actually promised, is here to collect his debt, so she has to take her place as the sacrifice now.Darn!