The translators and editors are delighted to announce the publication from Columbia University Press of Lust, Commerce, and Corruption: An Account of What I Have Seen and Heard by an Edo Samurai, translated by Mark Teeuwen, Kate Wildman Nakai, Miyazaki Fumiko, Anne Walthall, and John Breen, and edited and with an introduction by Mark Teeuwen and Kate Wildman Nakai. A full, annotated translation of Seji kenbunroku, written in 1816 by the pseudonymous Buyō Inshi, the book makes available in English Buyō’s top-to-bottom critical survey of Edo society, often cited for the vivid, knowledgeable picture it provides of everything from the decay and corruption of the warrior class to the moneylending activities of Buddhist temples and the blind guild to the actualities of brothel life.
The webpage for the book is https://cup.columbia.edu/book/978-0-231-16644-7/lust-commerce-and-corruption
What can I do with a B.A. in Japanese Studies? 
I wish I could have read this while doing undergraduate research on samurai (and how disappointingly different they were from the popular ideals). It seems like a very interesting read even without using it for research.