Review Detail of LazyBoy_Z in Please call me William III

The setting of the story is pretty good, The MC is in a position of power but not the absolute leader and has to struggle to create his own power base. I enjoyed reading a book where Author did not make other characters into dummies to make the MC look better. If one can ignore the childish tantrum of a 30-40 year old man crushing on a girl he just met and overdramatic japanese then it is a pleasant read. Can you please provide the raw name of the book?