Action.Adventure.Fantasy.Webtoon
It was made by the same studio that made solo leveling manhwa(Redice Studio) so u dont have to worry about the artwork cuz its FIREE! The plot is really good, the characters plays a major part throughout the story, the twist are also there. The main character also have depth and very intelligent. Having said all that, the main selling point is the mystery surrounding the story as you wondering what will happens next and which char is who. The world building in this manhwa is also fantastic. As a op fan, i really enjoy the world building aspect of tis manhwa.
Finally, i know that this isnt an anime suggestion but i really hope you’ll check it out as you’ve already caught up with solo leveling.
Here is a panel just to show the artwork quality of this show;
