Reiner is a central character in the adored anime series, Shingeki no Kyojin. This imposing person plays a key role in the storyline, captivating audiences with his engrossing presence. The fierceness of his nature is a driving force behind the success of the show. Reiner's unwavering loyalty and strength make him a fan-favorite in the anime community. Attack on Titans fans cannot help but be enamored by Reiner's invincible spirit, adding the show's immense popularity.