Kenta acaba de perder a su abuelo, y cuando limpiaban su habitación encontró un cuaderno con apuntes y dibujos sobre "el otro mundo" que había escrito su abuelo. En esa libreta contaba sus planes para después de morir; contiene un plan de viaje con equipo incluído, cosas en las que le gustaría reencarnar, cómo imagina a los dioses, el infierno, tipos de tumba y un sinfín de ideas interesantes y divertidas que hacen pensar a su nieto en escribir su propio libro sobre ello; pero principalmente, en las cosas que le gustaría hacer mientras está vivo.
 
Kenta has just lost his grandfather, and when they were cleaning his room he found a notebook with notes and drawings about "the other world" that his grandfather had written. In that notebook he recounted his plans for after he died; contains a travel plan with equipment included, things he would like to be reincarnated as, how he imagines the gods, hell, types of graves and endless interesting and fun ideas that make your grandson think of writing his own book about it ; but mainly, in the things that he would like to do while he is alive.