Guel Jeturk, heir to the Benerit Group's Jeturk Heavy Machinery, enters Asticassia School of Technology as a third-year piloting student. Initially, he displays a rough temperament, quick anger, and absolute confidence in his skills as the Jeturk House ace. His early arrogance, narcissism, and bullying tendencies manifest particularly in his treatment of Miorine Rembran, whom he views as a status-enhancing "trophy." After multiple duel defeats against Suletta Mercury, Guel is disowned by his father, Vim Jeturk, and cut off from family funds. He adopts the pseudonym "Bob," working for a private company. This period alters his personality, making him noticeably more sensitive to others' experiences and willing to help. His time in hiding ends when the Earthian group Dawn of Fold captures him during the Plant Quetta incident, holding him hostage. A pivotal conflict involving mobile suits results in Guel accidentally killing his father. This shatters him emotionally, burdening him with guilt and responsibility for his family's future. Freed during a Benerit Group raid, he returns to space and assumes the role of Jeturk Heavy Machinery CEO to salvage the company. These experiences instill a staunchly pacifist outlook; he despises unnecessary violence, using it only as a last resort and prioritizing incapacitating opponents over killing. He demonstrates this by defeating Shaddiq Zenelli despite Shaddiq deactivating his mobile suit's safety limitations. Guel's exceptional piloting skills persist throughout his arc. He corners Suletta Mercury's Aerial twice under disadvantageous conditions—once hampered by an imperfect AI system and later while suffering from PTSD. His official dueling record stands at 28 wins and 3 losses, with one loss to Suletta voided and excluded. His mobile suits are the close-combat-focused MD-0032G Guel's Dilanza and the more advanced MD-0064 Darilbalde, which utilizes an experimental AI system. Later conflicts include a near-fatal confrontation with his brother, Lauda Neill, who seeks vengeance for their father's death. Guel attempts to sacrifice himself to stop Lauda from succumbing to the Gundam Curse; both are saved by Felsi Rollo's intervention. Three years after the Quiet Zero Incident, Guel remains CEO of Jeturk Heavy Machinery, with the original Elan Ceres serving as his subordinate.