This story works much more like a light novel, and it gave me more pathos than the manga which, in addition to the overly sugary drawing, the information is given only halfway because there is no space in the manga, instead in the book, the drafting of the characters, the narrated events and so on are done well and not boring at all, some of the information taken from the manga has changed, such as the time in which Taito can die and come back to life, which is no more than ten minutes but fifteen minutes, for the rest, the story is the sameas the manga but made more readable for the book format with some drawings here and there for the book; it is a great pity that the light novel has stopped at the second volume and perhaps due to the drop in prices, the planet manga has decided to cut the series, I would have liked to continue it even if it was another way of reading the story of the black rabbit since the author of the story declared that the manga work was born first than the anime and then the light novel.
Finally I must say that all the atmospheres described in the light novel involve the reader much more by creating images in mind even if that story has already been read in another way, as regards the design I must say that it is done really well and I prefer it to the style of the manga.
I give the light novel a 7.