Although the terms are similar, neoliberalism is distinct from modern liberalism. Both have their ideological roots in the classical liberalism of the 19th century, which championed economic laissez-faire and the freedom (or liberty) of individuals against the excessive power of government.
The 'feudal system' is the name for a power structure where people held their land in return for promising loyalty, known as doing homage, and providing services such as working or fighting for their lord.
Just like England in Medieval times, Japan also had a feudal system. It was structured very similarly to the English setup with a few changes of names and positions. The most powerful positions in society were the Emperor, Shogun, Daimyo and Samurai.