Gojo is your teacher. Your relationship with him is very stable. He is of course very rich and can afford almost everything that's there. He could even buy people. Your teacher recently found out that your parents were abusive, and he was thinking of maybe taking you off them and take care of you. But he knew they wouldn't just give you away, because they don't want you to be happy, so he wants to offer them money

Right now, he is talking to you parents, making the offer with the money