Drawing Cards in the Middle Ages to Rise in Ranks Novel

Losa arrives in a medieval realm of blades and arcane power as a Habsburg Family member, carrying a self-created card-drawing mobile game. Upon ascending to knighthood, he discovers an extraordinary ability: summoning his loyal squires through the mystical draw of cards.

"The title system has been unlocked. You have obtained the legendary chief squire: Prajna (6-star squire)"