C691 Do an experiment

Zhang Yu held onto a forbidden card in his hand, and easily swiped it as he walked in.

"Because you didn't make an appointment with me in advance before coming here, you don't have enough money, so I can only give you two Xiao Bai rats and two rabbits."

The guard at the door was an old man who looked to be over a hundred years old.

Although he didn't look too good