There should be many people who have seen crayon Shinchan, and what they have seen will reveal your age. Among them, careful mother Miya is an ordinary Japanese housewife. Her main activity at ordinary times is to take care of Xin Can and go shopping. When shopping again, she can get a 20% discount on one shirt, but under her psychological transformation, buying two shirts means a 10% discount. Is this to hypnotize yourself?