The man allegedly advertised online promising women W70,000 for working for three hours at a trade firm doing business with Japan. He took women who responded to the advertisement to a hotel and performed various sexual acts, explaining they should know how to entertain his Japanese clients before starting their jobs, prosecutors said.

The man backed the pretence by showing the women medical websites and using pseudo-scientific terms like G-spot. When victims became to be suspicious, he would abruptly end the session saying this concluded training for the day.

One of his victims, a student who wanted to earn money for college tuition, reported him to police. Prosecutors said the man frequently changed his mobile phone number to escape detection and there were likely to be more victims who are too embarrassed to come forward.

(englishnews@chosun.com )