Bungou to Alchemist: Shinpan no Haguruma EP4 - Howling at the Moon Part 1

That man is fascinated. One day, he meets a beautiful boy inside the bus. While searching for the book that the boy was reading, the man hears a voice out of nowhere, guiding him towards the author of the book and its whereabouts. In order to deepen his friendship with the young man, he begins reading books, gradually becoming enthralled with literature as he interacts with the voices. The two feel that they are able to give their lives value through authors and books, until one day, a normally unimaginable incident presents itself...