Another character from my TLK AU (Alternative universe) fanfic: The first tale, where in the context of the story, Kovu is Nunka, Scar's legitimate son. In the fanfic, I didn't changed too much from the original characters personality and moral. In the fanfic, when Nunka/Kovu was a cub he always knew his mother's plan to take back the Pridelands, but he was different from his parents, he even tried to convince Bianca that they didn't had to fight, but for Bianca honor and benevolence was a symbol of weakness. Older, Nunka has become heartless, brute and insensible just like Bianca wanted. He was sent to the Pridelands to save Shani/Kiara, from the fire that Shetani/Vitani and Nuka/Nuka created... like what happens in the movie.
When Nunka is accepted in the pride, he first has to kill the prince, Chaka, then Simba. In the fanfic, Nunka spends much more time in the Pridelands, and he tries to murder Chaka and Simba twice but he always fail. Then when he starts to relate more with the royal family, Nunka starts to like them, and falls in love for Shani.
Character and original image (C) Disney