The Light Novel series is the source material for the adaptation of the Anime and Manga series. The information and terminology on the article will be based on the source material rather than the adaptions.
According to Rozemyne Leberecht looks exactly like an older version of his son Hartmut.
- Ascendance of a Bookworm. Part 3 Volume 3. Chapter 5: A Class for Kids
- Ascendance of a Bookworm. Part 4 Volume 7. Chapter 17: The Graduation Ceremony
- Ascendance of a Bookworm. Fanbook 2. Q&A with Miya Kazuki
- Ascendance of a Bookworm. Fanbook 2 Noble Family Tree
- Ascendance of a Bookworm. Part 4 Volume 1. Chapter 7: My Retainers and Entering the Dormitory