Tastuhiro was very nice and even wrote down the questions that he was not sure about. He then came back to me with the answer via email.
Hi Romain-san, Thank you very much for your favorable comment on my work. I am really encouraged. I am glad you had a chance to have a firsthand look at one of the most beautiful feudal-era castles in Japan. I hope your visit here will remain forever in your memory. I wish you all a good luck and good health. Regards, Tatsuhiro