Well, without more context, it's hard to say precisely. If it's a relatively unknown 'milgram novel', it could be a work of fiction that uses the name Milgram as a central theme. Maybe it explores the life of a person named Milgram, their relationships, and their journey through life. It could also be a science - fiction or mystery novel where the name Milgram has some special significance within the plot.
I'm not entirely sure about the specific plot of 'Milgram light novel' as I haven't read it in detail. But generally, light novels often have unique storylines involving various characters and their adventures, relationships, and growth.
One common theme is Kazui's discovery of his powers. Since he is a new and somewhat mysterious character, many fanfics explore how he comes to understand and control his abilities, much like Ichigo did in the original 'Bleach' story.
One interesting Kazui Kurosaki fanfiction could be about his journey in developing his own unique Shinigami powers. Maybe he discovers a new form of Zanpakuto that has powers different from his father's.
One popular character paired with Kazui Kurosaki in fanfiction is Ichigo Kurosaki, his father. Writers often explore their father - son relationship in different ways, like Kazui learning new skills from Ichigo.
The plot could involve the Vizards, with their unique powers and experiences, encountering Kazui Kurosaki. Maybe they sense his latent power and decide to train him, leading to a series of adventures where Kazui learns to control and expand his abilities under their guidance.
You can try looking on fanfiction websites like Archive of Our Own (AO3). There are often a lot of fanfics related to various 'Bleach' characters, including Kazui. Just use the search function on the site and type in 'Bleach Kazui' to see what pops up.