In the first episode, we're introduced to Miyama as an eccentric lawyer with a paralegal sidekick Akashi (who has apparently failed the bar several times and is thus stuck working with him). He stands in stark contrast to the polished, trimly dressed lawyers in the Madarame Law Firm (represented by the corporate lawyer Sada Atsuhiro (Kagawa Teruyuki) and Eikura Nana's Tachibana). Miyama is playful, carries an old leather backpack, likes to suck on hard candies, and doesn't wear his attorney's badge on his lapel like most lawyers do. He is also poorer than most lawyers, as criminal law tends to be a lot less lucrative than the corporate wangles that bigshot firms like Madarame specialize in.
Warning: Spoilers Below (well, sort of)