以“如何面对死别的悲伤”为主题，讲述了失去恋人的青年广播作家，与若无其事地贴近处于悲叹状态的人的“愤怒的关怀”相遇，描写了面对自己的爱情故事。广播作家森下昴与交往3年的恋人即将结婚。一边工作，一边忙于婚礼的准备。为了在仪式上播放，昴在整理回忆的照片。但是，到了晚上，她还是没有回来。“当我知道如何回忆的时候，我就能忘记你。”昴经历了许多不可思议的事情，其中又难过又可爱的追忆的日子是——

Only a day after returning from the past, Batman and his allies discover that the world isn't quite the same as they left it. The entire island of Japan no longer exists and neither do the heroes of the Justice League. But before they can get a handle on what is going on, yakuza literally start raining from the skies.