Reiner Braun is a central figure in the anime and manga series Attack on Titan, notably serving as the second commander of the Survey Corps. He is known for his stoic and disciplined demeanor, as well as his physical strength and martial prowess. Reiner struggles with a complex mix of guilt, regret, and a desire for redemption stemming from his actions and roles in the destruction of his homeland and the attack on the Scout Regiment. A key member of the Warriors Unit, he harbors a secret that has caused him great personal torment. Reiner is a gifted and determined fighter, yet his relationships are marked by an intense sense of loyalty and brotherhood, most notably with Bertholdt Hoover and Annie Leonhart, and an eventual bond with his comrades within the Scout Regiment. He harbors a tender affection for mikasa and a wish to be perceived as a hero by his friends and family back home.