Takashi Muraoka is also known as 村岡隆, Prez.
Takashi Muraoka is male.

村岡隆
The casino president who employs Miyoshi and Maeda between Hakairoku and Datenroku. A shameless cheater and opportunist, Muraoka uses his employees to lure in potential marks and rob them of all their money in a game of "Minefield Mahjong". He is Kaiji's opponent in part three of the manga.