The art is simplistic, though aesthetically pleasing, and the animation is very stiff and restrained. However, the voice acting is actually really good. With better visuals to go with the voices, this could've been a lot more entertaining. It's kind of disappointing considering how expressive some of the voices are when the visuals are barely changing.
The story, while overall somewhat bland, is actually somewhat refreshing in some ways. Yes, the protagonist is overpowered, but he's nowhere near as stupid as some of the protagonists you get in these types of shows. He actually confesses his feelings for the girl and it happens before the final episode.
Another good thing is that the villain is well-written. He's not the greatest villain ever, but he's decent.
Also, the action is surprisingly well-choreographed. The only problem with it is that there's no sense of danger or tension due to how over-powered Shin (the protagonist) is. The music does not help at all with this.
Overall, I'd only recommend this show if you're isekai trash like me.
Also why does no one hear Merlin yelling at the wyvern?
Also why is Agravain suddenly a character? He was never established and just comes out of nowhere.
Otherwise it's a mostly alright 2parter