It’s very simple. Press Y, Strength, select Bochi, and then add equipment to him. But be careful, dogs can only wear a small part of human equipment, such as high-slit armor and VIP. Most of the Yukata and the like cannot be worn. Try to give Pochi special equipment, which is the equipment starting with Pochi. Give him more Wangwang delicacies, and the dog will become stronger