The Cat's Repayment Begins with Taking over the Cat Yard

Lin Chen, a prospective college student, was checking his college entrance examination results at night when a little white cat appeared in front of him. "Repay a favor?" "Yes, benefactor." "Is he serious about repaying your kindness?" ... "Nyauchunin? There's something wrong with this name." "Don't worry, my benefactor. You can run this century-old business with peace of mind." "???"