七つの大罪 公式ファンブック

This two-issue companion series, published by Kōdansha from 2015 to 2016, serves as the official fanbook for The Seven Deadly Sins manga. Compiled during the height of the series' popularity, it collects character profiles, lore breakdowns, and behind-the-scenes material, offering dedicated readers a deeper look into the world and its cast. While not a narrative installment, it remains a key resource for fans seeking a comprehensive guide to the manga's early storylines and designs.