The manga adaptation of 'Sekai Saikou no Ansatsusha' has been a pleasant surprise for me, honestly. I picked it up after watching the first season of the anime, looking for more details on the magic system and the world's lore. The art is really solid—it captures the cool, calculated vibe of the protagonist, Lugh, during his missions, and then switches gear nicely for the slice-of-life school moments with Dia.
Some chapters expand on things the anime had to skip, like the intricacies of his mana cultivation. That said, the core story beats are largely the same. If you already know the main plot twists from the anime or light novel, the manga might not feel groundbreaking. It's a reliable, visually engaging companion piece rather than a must-read revelation. I still buy the volumes as they come out, mostly for the collection.