Under the cooperation of leading scientists from Asian Countries (China, Korea, and Japan), The Fourth A3 Roundtable Meeting on Asia Chemical Probe Research Hub was held in Sendai (Japan) from Nov. 18^th to 21^st in 2019.
　It was a great honor for me to participate this wonderful meeting. I had an opportunity to present my work on controlling the function of artificial nucleic acid SNA by light stimulation. To tell the truth, I was nervous because this was essentially my first experience of oral presentation in English at an international conference. I believe that I could make a good presentation as I practiced. However, I could not answer the questions clearly raised by the Prof. Sasaki (Kyushu Univ.) who said to me, “OK, Let’s discuss later”, after my “answer”. And I did not have time to reflect my poor English before I had to chair the next lecture. Needless to say, I have never acted as a chairperson at the international conference; if there were no questions from the participants, I myself had to make several questions in English. Fortunately (or unfortunately) since Prof. Asanuma asked a question, my nervous time was over without problem.
　Beside student’s oral presentations, I also had a chance to hear several excellent lectures by the Asian top scientists, which were so impressive and very attractive. In particular, presentation on the construction of a dynamic combinatorial library using the cross-linking of stilbene derivative introduced DNA was so interesting. I am sure that these special experiences do promote my growth as a researcher.

　In Nov. 19th, we visited the factory of Nikka Whisky and Sendai Castle. This excursion was very exciting and the rich nature of Sendai called “Mori no Miyako” gave me healing. It was so valuable for me to share time with young researchers who will lead the future of Asia in such good environment. One Korean friend kindly told me “your presentation was so good!” for four times, which encouraged me very much. I want to cherish the friendship I created here.
　Finally, I would like to thank the JSPS A3 Foresight Program support. I also want to express special gratitude to the organizers of this meeting, including Professor Ueda of Tohoku University who selected me as a presenter.