A rōnin (浪人) or rounin was a samurai with no lord or master during the feudal period (1185–1868) of Japan. A samurai became masterless from the death or fall of his master, or after the loss of his master's favor or privilege.
According to the Bushido Shoshinshu (the Code of the Samurai), a samurai was supposed to commit oibara seppuku (also "hara kiri" – ritual suicide) upon the loss of his master. One who chose not to honor the code was “on his own” and was meant to suffer great shame. The undesirability of rōnin status was mainly a discrimination imposed by other samurai and by the daimyo (the feudal lords).
Like regular samurai, rōnin wore their two swords. Rōnin used a variety of other weapons too. Some rōnin, usually if they lacked money, would carry a bō (staff around 5 to 6 ft) or jō (smaller staff or walking stick around 3 to 5 ft) or they would use a yumi (bow). Most weapons would reflect the ryu or bujutsu school they came from if they were students.
During the Edo period, with the shogunate's rigid class system and laws, the number of rōnin greatly increased. Confiscation of fiefs during the rule of the third Tokugawa shogun Iemitsu resulted in an especially large increase of rōnin. During previous ages, samurai were easily able to move between masters and even between occupations. They would also marry between classes. However, during the Edo period, samurai were restricted, and were above all forbidden to become employed by another master without their previous master's permission. Also, low-level samurai, often poor and without choice, were forced to quit or escape their masters.
but now in japan
we have lots of cars
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like this