Isayama Hita Rinko was studying in senior high school when he began submitting manga works to Contest 

After graduating from High School 

he matriculated into the manga design program of the art department at Kyushu Designer Gakuen

His first series, "Attack on Titan", debuted in Monthly Bessatsu Shōnen magazine in 2009 

won the shōnen category of the 35th Kodansha Manga Awards in 2011

Isayama's philosophy of nonviolence and civil disobedience has been adopted by many leaders around the world.

He was inspired to create "Attack on Titan" after seeing a drunk customer at the Internet café where he worked.

Isayama's favorite characters in "Attack on Titan" are Jean, Reiner, and Historia

He is a big fan of the Japanese idol group Momoiro Clover

Levi Ackerman, one of the main characters in "Attack on Titan", was created unintentionally by Isayama

Isayama wrote the original one-shot version of "Attack on Titan" when he was just 19 years old

Weekly Shōnen Jump rejected the "Attack on Titan" concept, believing it not to be in line with the magazine's shōnen style 

I hope you found these facts interesting

Attack on Titan" is a Japanese manga series written and illustrated by Hajime Isayama

The story is set in a world where humanity is forced to live in cities surrounded by three immense walls that protect