Grandma Lin knew that she couldn't let Lin Zi say those words out loud, if she did that then her grandson's reputation would be dragged through the mud. Back then she sold Lin Zi to that old man because she wanted money to send her precious grandson to the academy, if Lin Che passed the county level exams and became an official such a thing wouldn't have mattered after all they sold Lin Zi for a good cause and that was to nurture a genius. But Lin Che failed and he has been failing ever since he started studying in the academy, if not for that skilled master who told her that her family will have an official in the coming years she would have already pulled Lin Che out of the academy. But now that she knew of the prediction that the old master gave her Grandma Lin couldn't pull Lin Che out of the academy nor could she let anyone taint his pristine image.
Thus, even if she wanted to fight Lin Zi to the end, she still backed down. " what do you want, Lin Zi?"
