Xiaolü He Xiaolan 2: Mowang Pian

The second season of Xiaolü He Xiaolan.
The heartwarming story of Beryl, the Demon King, and Sapphire, the Head of the Knights' Order, who fight each other day after day, until the two gradually clear up the misunderstandings between the opposing human and demon worlds, open their hearts and understand each other, and go on an adventurous journey.
(Sourse: bilibili)