I am a person who doesn't know jewelry, and then I met my girlfriend. I am really savvy about some jewelry knowledge. Therefore, having a girlfriend who sells jewelry is equivalent to having a teacher with professional knowledge on the other hand. Whenever I buy gifts for my family or wedding rings for my relatives and friends, I can tell them one or two things so that they can easily choose. They can know what kind of material they want and what is the best, so I think it's a good experience.