Hajichi of Amami Islands. Hajichi of Okinawa. Back in the older days of Okinawa, women used sharpened bamboo as a needle to get tattoos on their arms and hands as a magical charm that would word off evil, bring happiness or preserve a woman’s chastity. It is said that a woman was to value her Hajichi over wealth, her husband and life itself. They were commonly tattooed onto a girl's hands and arms when she came of age or during preparations for marriage.