I hope that this isn't the final poster for The Legend of Anle. It looks kind of cheap or poor quality. It is nice to see Gong Jun and Diliraba together and something new for this drama though.
In real life, I heard that they are 5-6 years apart. In the drama, he mentions wanting a woman who is 8 years older than him, when they were at that dating place. So if she is supposed to be 30, that would make the M.L. 22ish years old in the drama.