The Beast King's Secret Twins

First fantasy-animated short drama I've ever watched and I was completely locked in. Caught a bit of it in an ad, got hooked, and inhaled the whole thing. It blends a fantasy world with secret birth, misunderstandings, revenge, and family love, the immersion is no joke. There are horns and ears, the kid characters and art style are unbelievably cute, and the story's actually good.