"Headmaster Blake! You really broke through? Congratulations!" Captain Jack acknowledged excitedly which put even more pressure on the Headmaster.
Number One's message was quite clear. He would continue to help as long as Headmaster Blake would stay on his side. There was clearly a conflict of interests as he was still the leader of the Winged Soul Academy. It was better for him to support Number One in order to advance in ranks but the Academy would lose its leverage.
Being the one who was providing Number One all the Soul Herbs forced him to cooperate with the Academy and in turn prevented him from leaving. He was already in debt and it would only increase if he wanted more expensive Soul Herbs. All of that would be gone once Number One was gifted a mine that could pay his debts easily.