“That day, the human race remembered the terror of being dominated by them, and the shame of being held captive in a birdcage…” — Over 100 years ago, a natural predator of humanity appeared: the Titans, giant humanoid but mindless monsters whose sole purpose of existence seemed to be to devour humans. There was an insurmountable gap in power between them and mankind, and as a result, humanity was rapidly exterminated to the brink of extinction. The survivors responded by constructing three concentric walls: Wall Maria, Wall Rose and Wall Sina, which graced them with a century of peace. However, one day a Colossal Titan far larger than any other seen before breached the outer wall, allowing the smaller Titans to invade the human territory and forcing the survivors to retreat to the inner walls. Eren Jaeger, a boy whose mother was eaten during the invasion, vowed to wipe every last Titan off the face of the Earth, and joined the military determined to exact his revenge.
Eren was a young man of average height and muscular build. He had a fairly long, yet rounded face, and sizable, expressive, teal-green eyes. His eyebrows were sparse and often furrowed, making him seem troubled or annoyed. Eren’s hair was short and dark brown, with his bangs falling naturally into a middle-parted, curtain-type style. His complexion also seemed somewhat tan. After his training and during his time as a soldier, he became very physically fit and muscular.
Eren was first seen wearing regular townsfolk attire, which consisted of brown trousers, a green shirt with string tassels at the collar, a maroon coat, and simple brown shoes. A few years before the fall of Wall Maria, he also wore a red scarf, which he gave to Mikasa the day they met. Eren was often seen in the typical Scout Regiment uniform when training. His casual attire consisted of a long, beige shirt (identical to that which he wore on his first appearance) that was worn with a maroon sash about his waist, brown trousers, and brown shoes. He always kept the key that was given to him by his father around his neck on a string.[26]
By the time Eren infiltrated Marley in the year 854, he had grown visibly taller, and his hair had grown down to shoulder length. He had a slight mustache and goatee, as well as bandages that covered his forehead and left eye. To maintain his cover, he wore the Eldian armband around his left arm, though he had initially worn the armband around his right arm before it got corrected by Falco Grice.[23] Later when he was imprisoned for the second time following his infiltration in Marley, he tied his shoulder length hair into a man-bun style which shows two of his small fringes in each sides and being cleanly shaved.