"Trails of Cold Steel" is a role-playing video game series developed by Nihon Falcom. Set in the fictional continent of Erebonia, the story follows a group of students at Thors Military Academy as they navigate political tensions and personal challenges. Players engage in turn-based combat, character development, and exploration of a richly detailed world. The series is known for its deep narrative and character interactions, featuring a diverse cast, including Rean Schwarzer, the main protagonist. Each installment builds on the previous ones, creating an interconnected storyline that explores themes of friendship, duty, and the impact of war on society.