Officers took Zhang Rongxing, the 44-year-old leader of Dragon, and three other suspects into custody for demanding payment of 50,000 yen per month in “protection” money — termed mikajimeryo — from the female manager of a Chinese hostess club in the Monzen-Nakacho area.
According to police, the suspects began threatening the manager in September of last year. The group subsequently received approximately 700,000 yen in payments.
All four suspects have denied the allegations.
Dragon is comprised of second- and third-generation returnees from China who came to Japan after the end of World War II.
The matter came to the attention of police after another female manager filed a similar complaint.