With his two friends, a video-game-obsessed young man finds himself in a strange version of Tokyo where they must compete in dangerous games to win.

Arisu, Karube, and Segawa, a trio of highschool delinquents, are bored with their current lives. During a firework celebration, Arisu wishes that he could live in a different world which would be more exciting for him. As such, his wish was granted, and the three were transported into a seemingly post-apocalyptic-like parallel world. After stepping into what seems to be an empty festival, they are greeted by a woman who tells them that they have already "entered their game". After clearing the game, she reveals to them that, in Borderlands, they must play games to survive.

Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits — with deadly high stakes.

Come share a toast in the Front Man's lair — but tread carefully, for you’re playing with fire.