In today's world, more and more convenient products are being developed, but just how convenient will it be? And sometimes I get scared. For example, 20 years from now, there may be many people who spend a day in front of a computer without even using it. I take classes at school in front of my computer, and my computer automatically prepares breakfast, lunch, and dinner for me. I don't like such a world, but considering the evolution of the current personal computer, I don't think it's a fantasy story. With the spread of the Internet, we have entered a convenient era where networks are connected almost everywhere. Without the spread of the Internet, I don't think I would have met Sayaka. Just like the Internet. It's just that when you start using a computer, you won't be able to exercise easily. I can't just stare at the internet without moving my body. Since I have less time to move my body, I would like to absorb various knowledge and do mental exercises properly. (Of course, it's also important to move your body (^^;). If you don't go on a diet...) I've digressed from the topic, but Sayaka, if you don't mind, please check it out.