To be honest, the federation was similar to the Tang Sect.
Therefore, when she created Tang Sect and it shone in the medical industry, the Medical Federation immediately reached out to her and told her to join. They wanted to gather all of the most skillful experts in the medical field so that they would be able to set the market price.
However, the resources that they had were not available for normal people. For them, the Medical Federation was a business. A tool for them to earn money, which was why they only accepted wealthy, powerful people.
She rejected their invitation previously, which caused the other party to come disturbing them. They even tried threatening her with violence. If it wasn't because she had her own mercenaries and Du Yanzheng's Sanctuary had one of the most powerful men in his team, she would have been destroyed by them.
