当他再次睁开眼睛时，他发现自己完好无损地站在一个陌生的房间里，面前有一个奇怪的黑色球。除了加藤加藤，还有三个人：西弘龙冈（佐佐木骏配音）、西弘一郎（郭智博配音）和铃木龙一（池田秀吉配音）。和加藤加藤一样，他们都是已故的人。雷佳告诉笼罩在薄雾中的加藤胜，这个黑球被称为“甘茨”，他们所要做的就是等待球发出命令。这一次，四人被传送到大阪，面对一个名为“滑梯少年”的怪物和一次盛大的鬼魂之旅。只有在甘茨设定的时限内杀死所有怪物，加藤加藤才有机会再次回到哥哥身边。
A chance encounter. Between the waves and the cliffs. At night. A week later, he got married. For many years, she no longer believed in happiness. They met. They play. They speak. They want each other. As a gift - unconditional. It's like a dance - on the edge of the void. One night. One night only. Their only night.
