The first season debuted on
Netflix on December 10 in 190 countries worldwide.
Yoshiki Watabe and Yasuko Kuramitsu penned the fist season's scripts with Satō. ROBOT is credited with planning and production.
The manga centers on Ryōhei Arisu (pronounced the same as "Alice" in Japanese), a male high school student who is irritated with his intolerable everyday life. One night, he tags along with his bad friends Karube and Chōta to hang out in town. However, the town is suddenly covered in giant fireworks. When he comes to his senses, Ryōhei notices that no one else is around. Finding themselves in a different world, Ryōhei, Karube, and Chōta are forced to participate in survival games or die right off the bat. The three fight to live, as well as to find a way back to their own world.