Name: Tanya von Degurechaff Basic Profile Appearance: Pale translucent skin, blonde hair, blue eyes (turning gold when praying). Age: 13 years old at the time of appearance (the form of a young girl). Affiliation: Imperial Army (leads the 203rd Air Mage Battalion, etc.). Voice Actor: Aoi Yuki. Persona and Traits: Former Life: A cold-hearted Japanese salaryman and HR manager. A rationalist who does not believe in God or religion. Goal: To rise through the ranks in a safe rear-line position and lead a stable life. However, due to the deteriorating war situation, she is constantly sent to the front lines where she ends up achieving great military feats. Personality: While she looks like an adorable young girl, she is ruthless on the inside. Strict with military discipline, she does not hesitate to use spartan training or assign dangerous missions to her subordinates for the sake of rational judgment. Relationship with "Being X": Forced to reincarnate into another world as a young girl by "Being X," who claims to be God, in order to instill faith in her. She views Being X as a "Holy Piece of Shit" and fiercely opposes it as an entity that coerces faith, yet she continues to be toyed with through the operation of magical artifacts. As per the original work.

Name: Viktoriya Ivanovna Serebryakov Basic Information Affiliation: Imperial Army 203rd Air Mage Battalion. Nickname: Visha. Height: Approx. 159cm–160cm. Hair Color: Brown. Persona and Traits: Kind and gentle personality: One of the few characters who maintains humanity and a conscience in the midst of a brutal battlefield. Fear and respect for Tanya: Initially terrified by Tanya's overwhelming madness and spartan leadership, she gradually comes to trust her and acts as her right hand. High magical aptitude: Originally an ordinary girl who hoped for a rear-line desk job, she was sent to the front as the war intensified. Through harsh training under Tanya, she grows into an excellent mage. As per the original work.

Name: Mary Sue Main Characteristics Overpowered abilities: Performs everything perfectly without special training or effort. Meaningless weaknesses: Even settings listed as flaws do not actually hinder the character in the story. Excessive affection from others: All characters, including popular ones from the original work, immediately like her. Story centralization: Convenient developments and plots all revolve around the character. Origin and Spread: Named after the character "Mary Sue," a fifteen-and-a-half-year-old Starfleet officer in the 1973 parody short story "A Trekkie's Tale" by Paula Smith. Modern usage: Used not only in fan fiction but also in commercial films, novels, and anime to criticize "convenient, shallow, overpowered, and universally loved protagonists." As per the original work.

Name: Hans von Zettour Character Traits: Rank is military officer/high-ranking staff officer (later promoted to key positions). Possesses a taciturn and scholarly side uncharacteristic of a soldier. Assists Rudersdorf, who is in charge of operations, by calmly handling overall strategy and logistics coordination. One of the few who recognized Tanya von Degurechaff's talent and danger early on, showing understanding as a sympathizer. As per the original work.

Name: Erich von Rerugen Character Traits: Serves as the Deputy Director of Operations at the Imperial General Staff. A rationalist with vast knowledge, often described as a scholar due to his un-soldier-like silence. A realist highly skilled in logistics, procurement, and rear-support coordination. A key figure who supports the military's strategy by assisting Rudersdorf. In the anime version, he is voiced by Hochu Otsuka. As per the original work.

Name: Matheus Johann Weiss Basic Information Affiliation: Imperial Army 203rd Air Mage Battalion (Vice Commander, 2nd Company Commander). Rank: Starts as a First Lieutenant and is promoted to Captain and then Major as the story progresses. CV: Daiki Hamano. Traits and Personality: High capability: Possesses the flight and combat skills necessary to keep up with Tanya's reckless orders and harsh battlefields. Serious hard worker: Fundamentally dogmatic and stiff, but a resilient individual who learns from failures and strives not to repeat the same mistakes. Trust from Tanya: Under Tanya's madness-level rationalism and skill, he handles realistic unit leadership and support as an adjutant, earning her deep trust. As per the original work.

Name: Kurt von Rudersdorf Persona and Personality Appearance/Temperament: A man in his prime with a sharp appearance and a bold, soldierly personality. He was in the same class as Hans von Zettour at the military academy, and they are close friends and comrades who understand each other deeply. Attitude toward Tanya: Highly evaluates the abilities of the protagonist, Tanya von Degurechaff, and inwardly shows a doting side, thinking, "A granddaughter who speaks her mind is quite cute." Role and Achievements in the Military: Operational Planning: Known alongside Zettour as an authority on maneuver warfare and logistics, they jointly proposed numerous important operations. Connection with Tanya: Proposed the fjord raid in the Northern Norden campaign and saw through Tanya's exceptional talent from the beginning. Core of the General Staff: After Zettour was reassigned from the Eastern Front, he powerfully supported the Empire's overall military affairs as the de facto head of the General Staff. As per the original work.

Name: Willibald Koenig Basic Information Affiliation: Imperial Army 203rd Air Mage Battalion, 3rd Company Commander. Rank: First Lieutenant. Traits: Tall with fox-like eyes and long hair tied back. Effectively an original character active in the anime and manga versions (only mentioned by name in the original novels). Persona and Personality: Calm and collected: Remains composed even on harsh battlefields, a reliable leader who maintains unit discipline. Caring: Though he appears cool, he has a passionate heart and values his subordinates and comrades. Focus on cooperation: Values teamwork over individual military feats, resulting in many shared kills. As per the original work.

Name: Liliya Ivanovna Tanechka Character Traits: Position and Status: A political officer of the Federation Army, but unlike the general image, she is depicted as an extremely gentle person. As per the original work.