The Honzuki no Gekokujou (Ascendance of a Bookworm) Part 4 manga adaptation, which covers the "Royal Academy" arc, is currently serialized in Japan and available through official high-quality sources. Because the manga is being adapted by multiple artists simultaneously across different parts, Part 4 is being released in parallel with Part 2 and Part 3. Official Raw Sources (High Quality)
Comic Corona (Niconico Seiga): This is the official home for the Part 4 manga adaptation by Hikaru Katsuki. New chapters are often serialized here first, sometimes offering free trial chapters. honzuki no gekokujou part 4 raw high quality
Where to Find Honzuki no Gekokujou Part 4 Raw High Quality Materials The Honzuki no Gekokujou (Ascendance of a Bookworm)
Title: A Delightful and Dark Fantasy Continues: Honzuki no Gekokujou Part 4 Review which covers the "Royal Academy" arc