Karstedt

About

A high-ranking nobleman who's a captain of the Knight's Order. He's one of the few nobles Ferdinand trusts, and as a result ends up involved in protecting Myne from the rest of the nobility.

(Source: TV Tropes)

Anime

Supporting Ascendance of a Bookworm: Re-Ascendance of a Bookworm

Supporting Ascendance of a Bookworm Season 2

Supporting Ascendance of a Bookworm Season 3

Manga

Supporting Ascendance of a Bookworm: I'll do Anything to Become a Librarian! Part 2 - I'll Even Join the Temple to Read Books!

Supporting Ascendance of a Bookworm: I'll do Anything to Become a Librarian!