ごくせん GOKUSEN S2EP1

Season 2 - Kumiko Yamaguchi is the granddaughter of a yakuza boss, Kuroda of the Kuroda Ikka. Her parents died when she was at the age of seven, and her grandfather had no other descendants, so Kumiko is next in line to head the family business with the title of "ojō" (お嬢, "young lady"). However, her lifelong dream has been to become a teacher. While her grandfather approves of her choice, others in the family want her to become the next boss.