Alice Ryouhei will leave high school soon, but he's trying to avoid thinking about his future. Late one night, when he's hanging out with his tough friend Karube and his silly, girl-crazy friend Chota, they see fireworks. After one blindingly bright explosion, they find themselves waking up in a different world. In this 'Borderland,' people are forced to either participate in potentially deadly games or simply die. Will Chota, Karube, and Ryouhei be able to survive this dangerous new world, and is there a way they can get back to their original lives?
Arisu Ryouhei, now a grown adult and married to Yuzuha, who is expected to give birth to their first child any day now, suddenly finds himself back in the Borderlands, the land between Life and Death, after getting into an accident. Will he be able to make it out of the Borderlands once more…?
The manga follows "another Alice," a female high school student who curses her everyday life. When by chance she loses her way on the "Border road", she is forced into in a deadly battle for survival.