Slavery in Tokyo Starts with Part-Time Job

Lin Yi traveled through a parallel world and came to Japan in the 1990s. Unexpectedly, he was involved in the dispute between Japan's largest violent gangs and was forced to survive in the cracks. As he explored the world, he discovered the unknown dark side under the prosperity of Shinjuku... In the 1990s, in Japan, a developed country that claims to be democratic and respects human rights, there was a slave kingdom dominated by various gangs with strictly divided spheres of influence.