Milord Using study money to push your daughter into a chastity belt is blackmail.
This might be a translation issue or just a word choice made in a hurry to reply but using study money to get someone to wear a chastity belt is bribery not blackmail. Blackmail is threatening to reveal secrets unless the victim pays money or some other benefit. Extortion is threating harm or violence unless the victim pays money or some other benefit. Bribery is money or some other benefit given to get the victim to do something or act in a particulat way.