Risa Yamada, former "legendary" kakeko (caller) who defrauded victims out of 600 million yen as part of the notorious Luffy crime ring, has revealed her journey from a successful career in the sex industry to the underworld of yami baito (dark part-time jobs). She began her career in high school with compensated dating before graduating to extreme sex work and regularly earned over 1.5 million yen a month. Her secret to high income was to apply to cheap “delivery health” services where the staff lacked motivation and the competition was low. Despite her lavish lifestyle, Yamada consistently sent 300,000 yen a per month to her ailing mother. A new book, "Luffy in a Cage," details the origins of the Luffy syndicate and Yamada's transformation into the notorious crime ring.