The protagonist, a 22-year-old knight and the youngest son of the Count of Kaizel. He inherited his mother's extraordinary beauty, which made her the most sought-after courtesan on the Leman Continent including Karileum. Ruth joined the Scarlet Knights at age 13, spent four years as a trainee, served two years guarding a princess in the 7th Division, then was demoted to the 14th Division defending the outer walls for three years. He was recently promoted to Commander of the 3rd Division of the Crimson Knights, tasked with protecting the crown prince. His promotion is attributed more to his family's political resurgence—his father Lyman Kaizel becoming Chancellor—than to his own abilities, which causes him deep inner conflict. He feels shackled by the family he longed to escape and has entertained thoughts of resigning and fleeing. He is a brilliant strategist with exceptional tactical prowess and swordsmanship, deeply loyal, and pushes himself harder than anyone to overcome prejudices about his appearance and courtesan mother's background.
