Pretty enjoyable show to watch! The actors are great, both the actors for the main characters, and the supporting cast. At some point halfway through the show, I wasn't sure if I would continue watching as it got a little too focussed on court politics without interesting adventures or fights. But as I kept watching, I'm happy I finished it, because the story, but moreover, the relationships between characters, got interesting for me again.

One of the best things about this show is the build up of relationships, both the romantic and platonic ones.
The development of the romance between the main characters was really good and fun in my opinion. Their relationship was built up beautifully and very believable. You could understand why they cared for each other and why they fell in love.

Another relationship I very much loved was the friendship with Xuan Lu's character: Feng Qiwu.
Feng Qiwu on its own is a very interesting and wonderful character.
[SPOILER WARNING FOR THE NEXT BIT]
But I admire the show so much for not making her end up in a hopeless love triangle, instead having her become super good friends with Bai Fengxi (to the point that I would actually have loved an alternate ending of Bai Fengxi being in a relationship with both Hei Fengxi and Feng Qiwu). This beautiful platonic relationship is something I love to see, and often miss in other shows. It definitely makes Who Rules The World stand out from other shows that are otherwise very similar in worldbuilding and overall storyline.