The Shocking Truth: How Old Is Sin Kiske In Guilty Gear -Strive-? (It's Not What You Think)

The question of "How old is Sin Kiske?" is one of the most frequently asked and most surprising pieces of lore in the entire Guilty Gear franchise. As of the latest installment, Guilty Gear -Strive-, the official chronological age of the character—who stands at an imposing 5'11" with the build of a young adult—is a mere five years old, a fact that completely recontextualizes his appearance and personality. This shocking discrepancy is the direct result of his unique biology as a Quarter-Gear, a crucial element of the series' deep and complex narrative that explains his rapid growth and immense power.

The information, current as of December 2025, confirms that despite his mature physique and his role as a seasoned bounty hunter alongside his reluctant guardian, Sol Badguy, Sin Kiske is chronologically still a child. His story is a central pillar of the Guilty Gear timeline, bridging the gap between the original Gear War saga and the modern-day events of -Strive-, making his true age a vital piece of character lore.

Sin Kiske: The Quarter-Gear Prince's Official Biography and Profile

Sin Kiske's existence is a pivotal point in the Guilty Gear universe, representing a new generation of characters whose very biology challenges the established norms of the world. His profile highlights the stark contrast between his physical maturity and his actual age.

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• Full Name: Sin Kiske
• Chronological Age: Approximately 5 years old (as of Guilty Gear -Strive-)
• Physical Age Appearance: Late teens/Early twenties (due to rapid Gear-accelerated growth)
• Birth Date: May 31st
• Parents: Ky Kiske (Father, King of Illyria) and Dizzy (Mother, a powerful Gear)
• Race: Quarter-Gear/Human Hybrid
• Height: 181 cm (5'11")
• Weight: 83 kg (184 lbs) or 160 lbs in Strive
• Origin: Illyria
• Eye Color: Emerald Green
• Occupation: Bounty Hunter (under Sol Badguy)
• Distinguishing Feature: A large, distinctive eye-patch covering his right eye, which is a key part of his design.

Born to the King of Illyria, Ky Kiske, and the powerful Gear, Dizzy, Sin's Gear heritage meant he had to be hidden from the public eye. To keep him safe and his existence a secret, he was entrusted to the care of Sol Badguy, the legendary bounty hunter and former Gear, who raised him as his apprentice.

Understanding the Gear Factor: Why Sin Kiske's Age is So Low

The most confusing aspect of Sin Kiske's profile—his massive size and physical maturity at only five years old—is entirely explained by his unique genetic makeup. He is a Quarter-Gear, a hybrid of human and Gear, and this partial-Gear biology is the catalyst for his accelerated development.

The Rapid Growth of Gear Hybrids

Gears, in the Guilty Gear universe, are bio-mechanical weapons that possess lifespans and growth rates vastly different from humans. Dizzy, Sin's mother, is a powerful Gear who also exhibited rapid growth, reaching the appearance of a young woman in a very short amount of time. Sin, inheriting this trait, experiences a massive growth spurt during his early years. This phenomenon is a critical lore point:

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• Infancy to Young Adult: Sin was born sometime after the events of Guilty Gear XX and appeared as a playable character in Guilty Gear 2: Overture (GG2) at a chronological age of just 3 to 4 years old, already possessing the build of a teenager.
• Progression to Strive: By the time of Guilty Gear -Strive-, the timeline has progressed slightly, putting his chronological age at approximately five years old. His physical appearance remains that of a tall, strong young man, making the gap between his mental and physical age a central theme of his character.

His fast-paced aging was a major reason why his parents had to hide him; a child growing from a baby to a fully-formed young adult in just a few years would have caused panic and confirmed the rumors of Gear resurgence among the populace.

The Mental and Emotional Age of Sin Kiske

While his body is that of a young adult, his mind is still very much that of a child, which is a source of both comedy and conflict in the series. His mental and emotional maturity is closer to his chronological age than his physical one.

A Simple, Optimistic Worldview

Sin's characterization is often defined by his immaturity and simplistic, yet optimistic, view of the world. He is frequently described as "clueless at worst, and innocent at best." This is most evident in his interactions with other characters:

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• Impulsiveness: He often acts before he thinks, a trait associated with younger individuals.
• Immature Diet: His infamous love for junk food, especially his constant need for energy due to his high-power consumption, is a running gag that highlights his childish preferences.
• Reliance on Sol: Despite his physical strength, he relies heavily on Sol Badguy for guidance and financial management, often being scolded for his lack of foresight.

This duality—a powerful, 5'11" bounty hunter who is mentally and emotionally still a five-year-old—is what makes Sin Kiske a fascinating and unique entity in the Guilty Gear roster. He possesses immense power inherited from his mother, a power he is still learning to control, especially the massive energy consumption that requires him to constantly eat to maintain his strength. This Quarter-Gear metabolism is another facet of his rapid development and high-energy lifestyle.

Sin Kiske's Role in the Guilty Gear -Strive- Timeline

Sin's appearance in Guilty Gear -Strive- as a DLC character is significant, marking his return to the main fighting game roster after his debut in Guilty Gear 2: Overture and his main appearance in Guilty Gear Xrd. His presence confirms the continued progression of the timeline and his growing role in the world's political landscape, especially as the son of King Ky Kiske.

The latest lore confirms that Sin is actively involved in the events following the downfall of the Universal Will, continuing his journey alongside Sol and Ky. His development is a major storyline, as he must learn to harness his Quarter-Gear abilities and overcome his mental immaturity to become the hero his parents and guardian know he can be. His true age of five years old is a constant reminder of the immense pressure and responsibility placed upon a child who must physically operate as a full-grown warrior in a world still recovering from a devastating war.