This is the text from a seminar I attended at the Japan Energy Center. It was published in April 2024, but it's the same as the public questions for 2025. The explanations are very easy to understand, so I bought several materials, but I personally think this one book would have been enough. You can also watch videos from the code on the back cover, which is helpful for support after the seminar. I copied and used the necessary parts, so there are no markings. Thank you.