This novel is an absolute masterpiece, every bleach fan have to read it and experience the greatness that is cant fear your own world.
The story is about what happens after the war with the Quincies, with shuhei hisagi being the main character, shuhei tries to make a special issue on the seireitei bulletin of the war and interview different characters to get the full picture, little that he knows, an aristocraft a member of the 4 great noble clans tokinada tsunayashiro, starts with his evil plan that will change the world upside down.
This story expand so much about the bleach story, it gives you better understanding of the overall plot of all arcs in the series, it gives you explaintion on the soul king, it makes you understand aizen true goals and in general explains alot of other characters past like kugo ginjo and kaname tousen, furthermore it gives you internal politics within the soul society which is awesome and makes you understand stuff that the series didn't touch upon and only mentioned, and the best thing is the characters are being so much themselves having conversations with each other and being the epic characters that kubo created.

Plot 10/10
As expected from ryugo narita the author of both baccano and durarara the mystery of the plot is given in tiny pieces from different characters precpective to help us understand the full picture in the end when they all comes together beautifully

Characters 10/10
The amazing bleach characters that we all love get to shine better than they ever could with the story analysing their past and thought making them much better characters, not only that, we get interesting well written antagonists with the main one being tokinada which has so many connections to plot points in the original series and has interesting psychotic ideology, the other 2 antagonists are hikone and aura both interesting characters that becomes more and more developed as we go in to the story, the main character shuhei hisagi which is barely given time to shine in the series is proven to be a splendid main character when he gets insane development as a character and amazing analysis of his personality and his past with tousen within the story making him much better character than you thought he was.

Art 10/10
Given this is a light novel there is no much art but every now and then you get some original kubo drawing. the book covers and the designs of the new characters and some new bankais are amazing just like always.

Overall enjoyment 10/10
This is an absolute masterpiece, some of the scenes in the book analysed the story so well that it blew my mind in alot of occasions making me to think, how the fuck i didn't notice that before, the novel made me love the bleach story and worldbuilding much more, made me understand the power system much better and made me love and appreciate characters like shuhei hisagi, kugo ginjo, kaname tousen, aizen(even though aizen is my favourite all time anime villian) and some other characters alot more.
I think that this novel is a must read for fans of bleach or even those who likes the series and read the manga but dont consider bleach to be such a good story, this novel will change your perseption of many stuff in the series and will help you understand how genius tite kubo was when he wrote some stuff in the bleach story.
Btw even the title has so much meaning when you finish the story its incredible.
In the end there are notes from both creators, narita's note actually blew my mind and made me think about potentially more amazing bleach content to be made.

Sorry about my english if i had some mistakes in my grammar i am not a native speaker.
So what are you waiting for?
BLEACH Can't Fear Your Own World is waiting for you to read it.