The ending of Pharaoh's Favorite Concubine 3 was also the final ending. Who can explain in detail?

The ending of Pharaoh's Favorite Concubine 3 was a very exciting ending as follows: In Pharaoh's Favorite Concubine 3, the main characters Avril, Amelia, and Carl all faced huge challenges. In the end, Avril and Amelia joined forces and successfully defeated Carl. After the victory, Avril and Amelia decided to leave Egypt and start a new life together. Before they left, they left a letter for each other to express their deep feelings and reluctance to part. After that, Avril and Amelia arrived at a mysterious island and began a new journey. Here, they encountered many dangers and challenges, but they always supported each other to overcome every difficulty. In the end, they successfully found the legendary treasure and spent the rest of their lives on this mysterious island. Overall, the ending of Pharaoh's Favorite Concubine 3 was a very romantic and touching ending that showed the deep feelings and perseverance of the protagonists.