In a world where Blazers wield their soul weapons and command unimaginable powers, Ikki Kurogane stands out as the lowest-ranked Blazer at Hagun Academy. Despite his F-grade status, he dreams of becoming a Mage-Knight. His mundane life takes a thrilling turn when he encounters Stella Vermillion, an A-ranked Blazer and visiting princess. A chance duel with high stakes sets the stage for an unlikely partnership between them. As they prepare for a prestigious tournament, Ikki and Stella challenge the norms and showcase the power of determination in Rakudai Kishi no Cavalry.