Kunio Murai's attractive mother, 27-year-old Julia Murai carried Kunio at the age of thirteen, and chose to run away to be able to keep him, when her parents disowned her and Kunio's father abandoned her. Julia works as a crane operator at a local construction yard, and is known to wearing skimpy outfits and no bra. Although Eikichi Onizuka swore off relations with female students, their mothers are still available, thus, he attempts to woo her on multiple occasions, even asking her out once.