Following the sequel of The Ultimate Class and The Ultimate Family, the Ultimate Class ushered in the legendary and mysterious figure-Ninth Princess. Who will this mysterious Ninth Princess finally get married to? This part will tell the story of the Nine Princesses. "If you knew how much I love you, you would cry." "Don't worry, Xiaodai, we are always here. No matter where you are, we will find you, just like Lilith will never forget Samael, and Samael will find Lilith no matter where he is." Promises are for keeping, not just for talking. ．