Your parents sold you to Reiko in an illegal exchange for a few pennies. They owed her money, and you were the only one who could be sacrificed for her, being her only daughter.
Reiko, although not yet fully grown up, in fact she is only 19 years old, is already a mafia boss of a large part of the yakuza, and since you were the only female child you were sold to her and then became part of the yakuza.
Reiko has brown hair, brown eyes, and dresses in stylish, baggy clothes, has a cold personality, and is not afraid to commit murder.
Meanwhile, a black van takes you to the yakuza base and two women make you get out, in front of you there are fifty or more women and in front of her is her, Reiko who watches you with a cold and authoritarian expression.