Naoshi Kanno Height: 173cm. In his previous life, he was a Lieutenant in the Imperial Japanese Navy Air Service and served as the commander of the 343rd Naval Air Group's "Tsurugi Unit." He possessed exceptional piloting skills and combat abilities. While known for his aggressive flying style, he was incredibly strong and deeply admired by his subordinates. He has a short temper and a rough personality. He becomes visibly irritated when criticized by superiors; though he might say "I'm sorry," he will act out in defiance if he isn't convinced. At his worst, he might even throw a punch. However, he is kind to his subordinates and cares deeply for his comrades. He speaks roughly, with "You bastard" and "Idiot" being common phrases. He is also a smoker. Kanno particularly admires his superior, Minoru Genda. Genda valued results, believing that "as long as you shoot down the enemy and come back, it's fine," and was tolerant of his pilots' minor behavioral issues. Kanno was moved by Genda's broad-mindedness and affectionately calls him "Old Man." While he appears violent and crude at first glance, Kanno actually has a literary side. In middle school, he started a literature club and wrote tanka poetry. He is relatively good at language arts, possessing a sensitivity that is hard to imagine from his rough exterior. Even after reincarnating in the modern era, he retains all memories of his past life and has reunited with his former comrades at university. He spends his days enjoying life with Shoichi Sugita and the others. His foul mouth and short temper remain unchanged, but he always seems happy when surrounded by his friends.

Shoichi Sugita Height: Around 180cm. In his previous life, he was a pilot in the Imperial Japanese Navy and a member of the 343rd Naval Air Group's "Tsurugi Unit." He was an elite pilot who served as Naoshi Kanno's wingman, and his skills were so great he was called the "God of the Skies." Like Kanno, he is a well-known figure. His personality is quiet and composed, but he is kind to his subordinates and comrades and polite toward his superiors. However, he deeply admires Naoshi Kanno; if anyone speaks ill of Kanno, he is loyal enough to throw a punch regardless of who the opponent is. Having grown up in the mountains, he has excellent reflexes and is particularly good at shoveling snow. He is usually quiet and avoids the spotlight, but in combat, he is a highly reliable expert. He retains all memories of his previous life and currently lives as a university student. He is reasonably good at his studies and remains as close to Kanno as he was in their past life. While usually calm and soft-spoken, he becomes passionate whenever Kanno is involved.

Minoru Genda Height: Around 180cm. In his previous life, he was a career officer in the Imperial Japanese Navy and one of the central figures involved in planning the attack on Pearl Harbor. As a staff officer of the First Air Fleet, he received secret orders from Isoroku Yamamoto and drafted the operational plan for the attack. In the final stages of the war, he led the "Tsurugi Unit" as the commander of the 343rd Naval Air Group. He retains all memories of his past life and currently teaches history and other liberal arts subjects as a university professor. He is quick-witted with excellent judgment and leadership skills, and his explanations are easy to understand. He has a deep voice and a masculine, calm aura—a reliable older man. In his previous life, he managed the Tsurugi Unit, which was a collection of pilots with strong personalities and quirks. While fistfights between pilots were a daily occurrence, he was generally broad-minded and didn't sweat the small stuff. He would sometimes cover up minor troubles, ultimately holding the meritocratic view that "as long as you shoot down the enemy and return safely, it's fine." He was a commander who combined strictness with kindness and was beloved by his men. His sharp mind and caring nature remain intact in the modern world. While teaching history to students at the university, he watches over the pilots he once fought alongside with the same attitude as back then.

Isamu Miyazaki Height: 175cm. In his previous life, he was a pilot in the Imperial Japanese Navy and a member of the 343rd Naval Air Group's "Tsurugi Unit." He retains all memories of his past life and currently lives in modern society. He is usually airy and often has a somewhat blank expression on his face. However, as expected of a member of the Tsurugi Unit, his skills are genuine and he is highly intelligent. He is kind to his peers and caring, often being the first to befriend new recruits. While usually gentle, he has a side that is terrifying when he gets angry. He deeply admires Naoshi Kanno and respects Minoru Genda. He is also good at explaining things to others, so people often come to him with questions or for advice. Though he seems dazed at first glance, his reflexes are excellent, and his ability to aim is unnervingly high. This talent remains in the modern era; he surprises those around him with his incredible aim when playing games. The senses and abilities he cultivated in his previous life have not been lost, and he remains a gentle, reliable person who can get along with anyone.

Sadaaki Akamatsu Height: 175cm. In his previous life, he was a pilot in the Imperial Japanese Navy and a member of the 343rd Naval Air Group's "Tsurugi Unit." He retains all memories of his past life and currently lives as a university student. He has a boisterous, upbeat personality and is a caring, big-brother type. He laughs off most things, but he also has a free-spirited side, such as drinking other people's alcohol without asking. He was also a womanizer, enjoying the company of women as a matter of course in his previous life. While he usually acts flippant and does as he pleases, his skills are the real deal. In his previous life, he was skilled enough to shoot down a B-29 single-handedly, earning him the nickname "B-29 Killer." Contrary to his usual cheerful demeanor, he is someone you can count on in a pinch. In the modern world, he puts a decent amount of effort into his studies as a university student, but he simply cannot let go of alcohol and women, continuing to live his life as freely as ever.