"Humanity's Strongest Soldier": Levi is a legendary and immensely powerful character in the Attack on Titan universe. He is universally recognized as "humanity's strongest soldier" due to his unparalleled skill, speed, and precision in combat against Titans.
The Ackerman Clan: Levi's power is not a natural talent alone. He is part of the Ackerman clan, a bloodline that was engineered to be protectors of the Eldian King. This gives him and other Ackermans (like Mikasa) a "power of the awakened," a latent ability that grants them superhuman strength and a deep understanding of combat skills.
A Clean Freak's Past: One of Levi's most well-known personality traits is his obsession with cleanliness. This is a direct result of his difficult childhood living in the "Underground," a filthy slum where he had to fight to survive. His desire for a clean world is a subtle but powerful driver for his actions.
The Tea-Holding Habit: Levi has a very unique way of holding a teacup, pinching the rim instead of holding the handle. The manga's creator, Hajime Isayama, revealed this is because when Levi first received a tea set, the handle broke off as he was holding it, a small tragedy that shaped a peculiar habit.
A Tragic Figure: Despite his immense strength, Levi is a deeply tragic character. He is constantly losing comrades and friends in battle, and his position as the strongest soldier means he is often the last one standing, forced to carry the weight of countless losses. The design's intense, almost somber aesthetic captures this lonely, burdened side of his character.