The Master of Laws Examination is a unified proposition of the national entrance examination. No matter which school you go to, you are all versatile (civil law, criminal law), versatile (jurisprudence, constitutional law, legal history), political, English (or Japanese, French, Russian and so on. You must be persistent in the exam, because you haven't touched it. As long as you do this, it is generally no problem, because everyone is on the same starting line with you.
This year, the national policy of Fashuo changed it into a professional master's degree, aiming at cultivating applied talents. People who study law must pass the departmental examination to succeed. After passing the exam, you basically don't have to work for others, you can open your own law firm.
I hope my advice is useful to you.