The Underworld's Bitterness

This is a apart of a fanfiction series based off of a series known as, "Black Butler" (Kuroshitsuji).
Disclaimer: This is only a fanfiction, any facts relating to Black Butler may/may not be as accurate as the series, there will be new plots made and a variety of the vocabulary used may be slightly modified, pardon any inaccuracy throughout the language and plots.

This is 14+ and contains mature content, guidance is advised if not without a carer/parental supervision if at a young age. The series will start off with a kick-off collaborated with Sebastian Michaelis, Claude Faustus and Grell Sutcliff. Depending on the audience of this series, there may be smut included within this series, as to why it is required to have parental guidance or supervision if at an age younger than 14.