Boys' Love Novels "We Fall in Love with a Devil in a Book"

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Duodecimo
A high school student with strange abilities who hears harsh voices from a book.
One day, he visits his father's parents' house where he died by his mother's errand.
The first thing he met was his brother-in-law, Ryuichi, who is said to be the same age! And the beautiful young man, 仰倉, who manages a huge library that he doesn't want to get close to.
In a series of surprises, Waichi is also given a book saying "This is yours"?
There is no interference from the book. He eats into the book with his unfriendly and handsome brother-in-law, Ryuichi, who is completely free from the interference of the book. He eats into the book and has the power to captivate humans. Devil 仰倉.
The moment he is chosen by a book and meets two men by chance, his new destiny moves. ---- Ultimate love destiny!