Holy Knight of the Sunset (陽炎の聖騎士 Yōen no seikishi) is the sixteenth novel of the Strike the Blood series.
Kojou, who has lost his memory, wakes up in a special demon zone called Onji Island and meets two strangers named Kasutani Yuri and Castiella (hereinafter Kasuko).
Kasuko becomes his supervisor and he spends his days studying in order to go to school and become a demon.
- Chapter One: College Of Magic Arts Officer
- Chapter Two: Beasts Of The Dungeon
- Chapter Three: Another Reality
- Chapter Four: The Lost Demon-Sanctuary
- Chapter Five: Paladiness of Mirage
The volume is expected to be adapted into episodes of Strike the Blood IV.