The daily life of ordinary people is mixed with the Yakuza criminal group, which occupies a leading position in the criminal world of Japan. 5 groups, 31,100 people, 23 districts. And the invisible life of Aiko Tatsuzawa, who was forced to forget her homeland and live under a different name. Criminal plots are closely intertwined with the ordinary everyday life of the young heroine, thereby luring her into the alien world of Japanese crime.ー How many secrets does the all-powerful “Yakuza” keep?ー Does a samurai of a different blood and origin have a soul?ー Which clan is worthy of the title of “Great” in Japan?ー What is the dangerous downside of life in Tokyo among the Japanese mafia?ー How dangerous is an enemy with an irezumi?ー What is the price for life in the “Yakuza”?ー Will Aiko be able to understand all the intricacies of the Tatsugi-atsu criminal group?ー No answers, no questions.