Foreign workers related laws and regulations
Foreigners trying to make a living in Japan should be aware of related laws and regulations.
Being unaware of the conditions is not a valid argument when consulting with agencies such as "Hello Work", so it is highly recommended that you do research on the conditions before going job hunting.
The links below contain plenty of information about working in Japan.

■Ministry of Health, Labour and Welfare Fukushima Labor Bureau. For foreigners wishing to work in japan.

>>> [Japanese]
>>> [English]
>>> [Chinese]
>>> [Korean]
>>> [Portuguese]

■Tokyo Foreign Employment Center.

>>> [English] Labour related laws.
>>> [English] Are you permitted to work in Japan?
>>> [English] English translation of Labour Laws of Japan.
>>> [Chinese] 東京外国人雇用服務中心