Tokyo Ghoul is a Japanese dark fantasy manga series written and illustrated by Sui Ishida. It was serialized in Shueisha's seinen manga magazine Weekly Young Jump from September 2011 to September 2014, with its chapters collected in 14 tankōbon volumes. The story is set in an alternate version of Tokyo where humans coexist with ghouls, beings who look like humans but can only survive by eating human flesh. Ken Kaneki is a college student who is transformed into a half-ghoul after an encounter with one of them. He must navigate the complex social and political dynamics between humans and ghouls while struggling to maintain his humanity.

Inuyashiki (いぬやしき) is a Japanese science fiction manga series written and illustrated by Hiroya Oku. It was serialized in Kodansha's seinen manga magazine Evening from January 2014 to July 2017, with its chapters collected in 10 tankōbon volumes. The story follows two people, who via a mysterious event, are endowed with superhuman abilities, but the way they choose to use these abilities is completely different.