Ichiro Satomi is a 36-year-old man standing 187 cm tall, with black hair and a faded mustache. His typical attire consists of a white dress shirt, khaki pants, black socks, and shoes. The significant hardships of his career lend him an appearance often perceived as older than his actual age. He presents an informal, laid-back demeanor that can lead to initial underestimation. Yet beneath this relaxed exterior lies strong leadership, marked by calmness under pressure. Deep guilt over sending young Valkyries into combat reflects his profound sense of responsibility for their safety. His effectiveness as a commander is proven by his ability to manage diverse personalities and maintain their trust. His career background includes command roles: he previously commanded Hyakuri Air Base and currently serves as captain and commander of Tateyama Air Base. An incident involving the shootdown of Valkyries Yayoi Amatsuka and Akira Jinguji at Hyakuri led him to shoulder responsibility; his subsequent transfer to Tateyama was perceived as a punitive reassignment from the frontlines. He shares a long-standing professional relationship and close friendship with Toshizo Okita, knowing Okita's daughter, Sakura, since her childhood. Misato Honjo also previously served under his command at another base, their acquaintance predating the first Valkyrie selection test. During that first Valkyrie selection test, he commanded Japan's inaugural Tactical Valkyrie Unit, meeting Sonoka Watarai and other members. Prior to the Mount Fuji Primary Pillar operation, he followed Toshizo Okita's orders to relocate to a backup command center, narrowly escaping destruction from Thor's lightning attack. After Claudia Bruford's revelations about Norse mythology, he coordinated international preparations for the global threat. This culminated in his appointment as leader for the Second Ragnarok Operation, the final battle against the Pillars. His actions consistently demonstrate strategic decision-making and organizational skill in critical situations. His name, Ichiro, meaning "one son," derives from the characters "一" (one) and "郎" (son). The surname Satomi combines "里" (village) and "美" (beautiful).