Amidst a blizzard caused by UMA Winter, Billy receives a report on the Autumn battle and learns Undead and Unluck are evolving. Juiz appears, revealing to him that the artifacts are weapons meant to defeat God and that the Ark can only perform one more loop. She urges Billy to join forces once more and stake everything on Unluck to achieve their shared goal: "defeat God." However, Billy declares that they cannot work together. Juiz realizes Billy's true intention—to obtain Ark and Apocalypse—but before she can act, Billy drags them into a brutal clash involving UMAs on both sides. Resolute in their own "justice," Juiz presses forward with her blade, while Billy counters by utilizing other Negators' abilities and his pistol. What is Billy's true objective? Meanwhile, Andy and Fuko, having captured Autumn's core, are en route by air to take down Summer. But Billy anticipates that Juiz entrusted Apocalypse to Andy, and sends assassins to strike the pair from the skies!

講談社「週刊ヤングマガジン」に連載され、累計700万部を超える人気漫画を原作にしたOVA作品のシリーズ第１弾。物語の主人公は、車と女にしか興味がない不良高校生のハジメとコージ。二人はシャコタン（車高を低くした車）に改造した愛車・ソアラを駆って、ナンパばかりしていた。今日も二人はいつも通りナンパをしていたが……。『KEY THE METAL IDOL』の佐藤博暉を監督に迎え、アニメーション製作を数多くの名作を送り出してきたスタジオピぴえろが担当している。さらに主題歌を人気アイドル・西田ひかるが担当していたことにも注目だ。

一天突然收到了一个小包裹。在当中有着写着“恭喜你。你从十万分之一的概率当中，入选了欺诈游戏”的信，以及一亿日圆现金。而那就是欺诈游戏的开始。在30天后的游戏结束日，要归还自身所持的一亿日圆。规则就只有这些。顺利夺走对战对象所持金钱的胜利者就能获得一亿日圆，失败者就要背负一亿日圆的债务……谁是可信的，谁是不可信的……将在巨额金钱面前动摇的，人类的心理描绘得淋漓尽致的问题作！