The Ajin manga series began serialization in Kodansha's Good! Afternoon magazine, marking the start of the franchise.
The first volume of the Ajin manga was published, allowing readers to enjoy collected chapters.
Announcement of the anime adaptation of Ajin, expanding the franchise into animation.
The Ajin anime television series aired, bringing the story to a wider audience through animation.
The first live-action Ajin film was released in Japan, offering a new format for the story.
The first historically recorded instance of an Ajin is documented, establishing their existence as immortal beings.
Technological advancements lead to the ability to detect Ajin through blood tests, changing the socio-political landscape.
Kei Nagai, a high school student, is revealed to be an Ajin after a fatal accident confirms his immortality.
Ajin who seek to resist human oppression form a secret organization to advocate for Ajin rights and survival.
Kei evades government forces after being captured, showcasing the tactical and regenerative capabilities of Ajin.
A large-scale conflict erupts between human authorities and Ajin, signaling the start of open hostilities.
Satou emerges as a dangerous and strategic antagonist, leveraging Ajin powers for his own ends.
Public awareness and activism for Ajin civil rights increase, leading to social unrest and policy debates.
A decisive confrontation between Kei Nagai and Satou shapes the future of Ajin-human relations.
