Shingeki no Kyojin is a 25-episode Japanese anime TV series based on a Japanese manga series written and illustrated by Hajime Isayama. According to Hajime Isayama’s award-winning manga, Shingeki no Kyojin follows Eren, along with his adopted sister Mikasa Ackerman and his childhood friend Armin Arlert, as they involved in the brutal war against the TItans and race to discover a method of defeating them before the last walls are breached.
hundreds of years ago, the human race was slaughtered to near annihilation by gigantic humanoid creatures called Titans, driving humans to hide in fear behind huge concentric walls. What makes these giants truly frightening is that their taste for human flesh isn’t delivered out of hunger but what seems to be out of pleasure. To ensure their survival, the remnants of mankind started living within defensive barriers, leading to one hundred years without a single Titan encounter. However, this fragile calm is soon broken when a colossal Titan managed to breach the supposedly impregnable outer wall, reigniting the battle for survival against man-eating abominations.
After witnessing a terrible personal loss at the hands of the invading creatures, Eren Yeager dedicates his life to their eradication by enlisting into the Survey Corps, an elite military unit that fights the merciless humanoids outside the protection of the walls.