Lieutenant Lee Conrad commands the Free Pact Alliance's valiancer unit aboard the warship Cygnus, piloting the durable light-blue Beryl Commander combat valiancer. A tall man in his late twenties, he has scruffy brown hair, facial hair, and droopy mint-green or greyish-blue eyes, typically wearing a green-and-white pilot jumpsuit with black plating.

His personality sharply contrasts between duty and downtime. In combat, he exhibits tactical intuition, battlefield attentiveness, and decisive leadership, issuing precise orders prioritizing unit safety and strategic advantage against elite foes like Alfried Gallant's forces. Off-duty, he adopts a relaxed, nonchalant demeanor, especially toward diplomacy. His defining trait is fierce protectiveness toward comrades, exemplified when he intercepts Gallant’s Nector Rifle shot aimed at inexperienced pilot Aoba Watase—sacrificing his valiancer to shield her. This act underscores his responsibility for all under his command, regardless of background. After recovering from injuries sustained, he mentors Aoba on the duties accompanying military rank.

Conrad maintains a close relationship with Cygnus Coupling System scientist Elvira Hill, eventually marrying her as shown in the epilogue. Narratively, he leads the Cygnus valiancers against the Zogilia Republic, integrating the civilian Aoba into operations despite initial skepticism. He commands during pivotal battles: defending the Cygnus from Dolzief’s forces, confronting the Zogilian battleship Vajra, and advocating immediate action after the "Gorgon shot" cripples the Alliance fleet. His tactical expertise enables the unit’s survival against enemy coupling valiancers and rogue pilot Bizon Gerafil until reinforcements arrive. Post-war, he remains aboard the Cygnus with Elvira.