attack on titan was a manga written by hajime isayama, there are currently 34 volumes of AOT (attack on titan) and Isayama is working on a 35th one about levi after the rumbling. There has also been a fair share of spin offs, like junior high, before the fall, and no regrets. This manga series was adapted as an anime under wit studios and then moved to mappa for the 4th and final season of the show.
**SPOILERS AHEAD**
The series is set in a world where the last of humanity is trapped behind three large walls titled wall maria, wall rose and wall sheena, 5 years before Eren and his friends join the corps, wall maria gets breached by 2 abnormal titans which they titled the 'Colossal titan' and 'the armored titan', killing his mother, later he joins the training corps and getting #5 in the top 10 ranking, Eren joins the scouting corps (they go outside the walls to try and regain wall maria) where he meets jean, Reiner, bertholdt, Annie, Marco, christa/historia, ymir, Connie and sasha as fellow members of the 104th training corps. there he meets commander Erwin, section leader hange, and captain Levi. erens goal is to avenge all the titans and destroy the titan race, before he realizes he's able to shift into a titan as well.. along the plot of the story trusted characters turn on us and, it ends up in genocide..
I'll plot each season and mark it as spoilers and do character pages too :3
**SPOILERS AHEAD**
The series is set in a world where the last of humanity is trapped behind three large walls titled wall maria, wall rose and wall sheena, 5 years before Eren and his friends join the corps, wall maria gets breached by 2 abnormal titans which they titled the 'Colossal titan' and 'the armored titan', killing his mother, later he joins the training corps and getting #5 in the top 10 ranking, Eren joins the scouting corps (they go outside the walls to try and regain wall maria) where he meets jean, Reiner, bertholdt, Annie, Marco, christa/historia, ymir, Connie and sasha as fellow members of the 104th training corps. there he meets commander Erwin, section leader hange, and captain Levi. erens goal is to avenge all the titans and destroy the titan race, before he realizes he's able to shift into a titan as well.. along the plot of the story trusted characters turn on us and, it ends up in genocide..
I'll plot each season and mark it as spoilers and do character pages too :3