A revolutionary shonen series that will, without a doubt, leave an everlasting mark in anime history, Attack on Titan is a modern cult classic of unprecedented success. The harrowing story of a world infested by Titans came a long way since its humble beginning as a one-shot in 2006, influencing the entirety of the shonen genre to pursue darker storylines and aiding in anime's growing worldwide popularity. It's hard to believe that such a vast, multifaceted story is a vision of a single creator — Hajime Isayama.
Source：https://www.cbr.com/hajime-isayama-aot-creator-fun-facts-trivia/
