Izza

Izza is the First Sword Saint, a legendary warrior from the Dawn of War whose soul persists centuries later inside Aston Nietzsche. Though outsiders sometimes call him Aston's second personality, the corpus identifies him as a literal second soul with his own voice, memories, beliefs, and ability to control their shared body. He mentors Aston, detects other forms of possession, and temporarily takes command when Aston's divine seal leaves the younger Sword Saint unable to protect Selena. (Chapters 119, 135, 144, 169, 195, and 212–213)

Biography

Role in the Supplied Story

Izza first appears as Aston's internal partner during a demon suppression campaign, apologizing when his distraction lets a Dullahan approach and insisting that Aston—not his predecessor—is the present Sword Saint. Their exchanges establish a cooperative relationship rather than a merged identity: Izza can speak through Aston, change the body's cadence and demeanor, and occasionally take control, while Aston answers him as a separate mentor. At the Axenburg banquet, Izza becomes excited by what he believes is another divided soul inside Vanitas Astrea, but his attempt to call that supposed personality forward fails. The error shows that his sensitivity can detect an unusual embodied identity without perfectly explaining its cause. (Chapters 119 and 135)

Izza supplies Aston with tactical observation during the Ripper investigation and recognizes a binding circle calibrated specifically to their shared body. He also encourages Aston's distrust of institutional religion despite their cardinal title, treating the church as propaganda while retaining personal debts and protective commitments. When a dark mage occupies the Pope's body, Izza distinguishes the surviving body from the erased original soul and warns Aston that the attacker is no longer Telos. This knowledge is especially credible because Izza himself is a resident soul, but the corpus does not present him as universally infallible, as his mistake about Vanitas demonstrates. (Chapters 144, 173, 195, and 212–213)

When Aston's binding contract activates a divine seal and makes resistance agonizing, Izza takes bodily control to protect Selena and the orphanage. He fights through the seal, dark mages, paladins, and necromantic corpses, repeatedly ordering Selena to evacuate while Aston warns him from within. Later, when Selena is lost and Vanitas provokes a despairing Aston toward suicide, Izza pleads internally for his partner not to take the bait. Aston kills himself despite that warning. Izza is not independently heard afterward, and the Sword Saint blessing transfers to Kafka; because the corpus does not separately depict Izza's soul being destroyed or escaping, his latest status is best treated as presumed deceased with the shared body's death rather than conclusively resolved. (Chapters 213, 250, and 290)

Appearance and personality

Izza has no independent body in the supplied present. When he speaks or takes control, Aston's ivory-haired, cardinal-robed body remains outwardly the same, but its voice becomes rougher or more childlike and its eyes shift away from Aston's lapis-lazuli color—bright orange in conversation with Soliette Dominique, and ominous gold during the battle against the false Pope. These changes signal control without making Aston and Izza physically separate people. (Chapters 119, 135, 195, and 213)

Izza is irreverent, profane, playful, perceptive, and shaped by an era of incessant warfare. He dismisses organized religion, teases Aston and Soliette, and meets danger with the instincts of a mercenary, yet also insists on proper conduct toward his successor and prioritizes Selena and the orphanage over pride. His harsh language does not negate care: he apologizes for mistakes, watches Aston's back, accepts agony to preserve him, and finally begs him to remain alive. (Chapters 119, 135, 144, 195, 212–213, and 250)

Magic and abilities

Izza is remembered as the strongest warrior of his own age and the First Sword Saint. In the present, however, every physical feat occurs through Aston's body, divine energy, and inherited Sword Saint power. The narrative attributes the superior combat judgment and execution to Izza's soul, but does not establish that he can cast or fight independently of a host. (Chapters 135, 169, 195, and 213)

Soul residence and bodily control

Izza can remain conscious inside Aston, converse mentally, speak through the body's mouth, alter its visible eye color, and assume complete motor control when Aston yields. His resident soul prevents hostile possession because the body is already occupied by a second will; this also gives him a comparative basis for noticing when Telos's soul has been erased and replaced. The ability is not unrestricted body theft: the partnership is long-standing and consensual enough that Aston deliberately “gives him the wheels,” while Izza continues to hear Aston's warnings after taking over. The corpus never explains how Izza first entered Aston or whether he could transfer to another living host. (Chapters 119, 135, 195, and 212–213)

Sword Saint combat and limitations

Under Izza's control, Aston's body uses divine energy with the reflexes and brutality developed during the Dawn of War. Izza shatters the ground with a fist, moves fast enough to tear a paladin's head off with an uppercut, reinforces his bones to catch an empowered blade on his forearm, and cuts through dark mages, paladins, and reanimated corpses while the divine seal suppresses him. His judgment also identifies specialized bindings and necromancy quickly. The limiting factor is the shared body: the seal burns it from within, gradually ruins hearing, causes bleeding, and makes Aston's sword too heavy to lift. Izza can endure more effectively than Aston but cannot erase the contract, ignore accumulated injury, or prevent Aston's later suicide when he does not control the body. (Chapters 144 and 212–213)

Relationships

• Aston Nietzsche: Izza is Aston's distinct resident soul, predecessor, mentor, and battlefield partner. They trade control and warnings while retaining separate voices; Izza's final known act is pleading for Aston not to commit suicide. (Chapters 119, 135, 144, 195, 212–213, and 250)
• Selena: Izza shares Aston's duty to protect Selena and presses her to evacuate the orphanage rather than remain in battle. His rough manner contrasts with Aston's, but his actions prioritize her survival. (Chapters 119, 195, and 213)
• Vanitas Astrea: Izza mistakes Vanitas's unusual identity for another resident personality and tries unsuccessfully to call it forward. He later recognizes Vanitas by name and ultimately urges Aston not to succumb to Vanitas's provocation. (Chapters 135, 195, and 250)
• Soliette Dominique: Izza knew Soliette in an earlier period and takes control to greet her directly when she requests him. Their coarse exchange underscores both his separate memory and his role as Aston's mentor. (Chapter 195)

Items

• No notable item associated with Izza meets the scoped item-manifest criteria.