The story takes place in Japan in both 1986 and 2006. The 1986 storyline follows a gamer named Daisuke who wants to confess his feelings for Kumiko, a girl he likes — all while trying to reclaim his copy of the Famicom (NES) game Mighty Bomb Jack that he lent out. In 2006, the hapless game company manager Arino-kacho struggles to complete Mighty Bomb Jack in front of fans. The storylines of the boy who loves Famicom and the middle-aged man who loves Famicom eventually merge into one.

离世的人们最先来到的，便是阴间的市政府办公厅“死役所”。
在这里将会通过手续，决定那些因自杀、他杀、病死、意外死亡等各种原因而死去的人们该去向哪里。
市村是死役所的综合接待，他用礼貌到让人不快的态度面对一个又一个死者——“您是尊贵的逝者”。
来到这里的死者各种各样，有的已经接受了自己的“死亡”，而有的还没能理解现状。
究竟他们曾如何活过、又是如何死去的呢？
从死者的申请书中抽丝剥茧，生前的惊涛骇浪一个个浮现眼前。
清白无罪者前往天堂，罪孽深重者落入地狱。又或者——。