Bittersweet Loyalty (Zuko's Daughter)

At sixteen, Zuko had many realizations:
1. He would do anything for his people.
2. His father was not a man he wanted to be.
3. The Fire Nation and his father were not safe.

In a reality where Zuko's Agni Kai happens later in life, he's mature enough to recognize its significance. Guided by the Sun Warrior Princess, he embarks on a mission of self-discovery. Zuko's journey leads him to marriage and fatherhood, but tragedy strikes when he loses his wife. Vowing to protect his daughter at all costs, Zuko's path is set on securing a safe future for her.

Years later, a terrible storm throws Zuko and Katara into the sea, and they wash ashore together. Forced to form a truce, they set out on a journey to reunite with their families. Along the way, they discover that there is more to each other than meets the eye, forging an unexpected bond that could change their destinies.

(Rewrite of Firefly)