Фукунаґа Юджі

A trans woman who first appears in Round II, where she poses as a woman named Hitomi (Hitomi is her friend for whom she substitutes as player No. 3). Sly and calculating and also a 5th degree black belt, Fukunaga is a skilled manipulator whose greatest weakness appears to be her desire for money and her bad temper. She greatly hinders Nao and Akiyama during Round II and the Revival Round, but has never been able to outwit Akiyama. However, Fukunaga cooperates with them well during Round III and even when she finishes the round debt-free, she chooses to continue in the tournament. To avoid revealing her skills during the mock stimulation, she sends Nao in her place, matching Solario's expectations.

Though Fukunaga seems fond of Nao in her own way, she doesn't think of her as competent. In chapter 83, Nao comes to the conclusion that Fukunaga has a crush on Akiyama.