**Comparison of algebraic and geometric constructions of supercuspidal representations**, The 9th East Asia Number Theory Conference, August 26, 2021.**On comparison of algebraic and geometric constructions of supercuspidal representations**, Keio algebra seminar, August 2, 2021.**Geometric L-packets of Howe-unramified toral supercuspidal representations I**(slides), Automorphic Project & Research Seminar, online, May 14, 2021.**Twisted endoscopic character relation for Kaletha's regular supercuspidal L-packets**(slides), RIMS conference: Automorphic forms, automorphic representations, Galois representations, and its related topics, online, January 29, 2021.**Twisted endoscopic character relation for Kaletha's regular supercuspidal L-packets**(slides), MIT Lie Groups Seminar, online, December 2 (Boston time), 2020.**On a comparison of algebraic and geometric constructions of supercuspidal representations**(slides), Kobe number theory mini-workshop, online, November 19, 2020.**On the local Langlands correspondence for supercuspidal representations**, 65th Symposium of Algebra, online, September 4, 2020.**On the characters of Deligne-Lusztig representations of finite reductive groups**, Number theory seminar, Kyoto University, online, May 22, 2020.**Local Langlands correspondence and Langlands functoriality**, Kyoto University Colloquium, Kyoto University, January 15, 2020.**Arthur's classification theorem and the local Langlands correspondence**, Mathematics seminar, KIAS, January 6, 2020.**Introduction to Arthur's local classification theorem**, 22nd Hakuba Autumn Workshop on Number Theory "Application of Arthur's multiplicity formula to Siegel modular forms", November 2, 2019.**Towards the twisted endoscopic character relation for regular supercuspidal L-packet**, Oberwolfach workshop "New Developments in Representation Theory of p-adic Groups", Oberwolfach, October 1, 2019.**On Henniart's problem on the ratio of Swan conductors**, Regulators in Niseko 2019, Hilton Niseko Village, Hokkaido, September 9, 2019. (promised)**Introduction of Langlands-Shahidi method**, 10th Kurashiki Number Theory Meeting, Kurashiki Seaside Hotel, July 26, 2019.**Towards the twisted endoscopic character relation for regular supercuspidal representations**, Workshop on Shimura varieties, representation theory, and related topics, Hokkaido University, July 18, 2019.**On depth in the local Langlands correspondence**, Number theory seminar, Kyoto University, April 12, 2019.**On depth in the local Langlands correspondence**, Workshop on arithmetic geometry, Tokyo-Princeton at Komaba, the University of Tokyo, March 20, 2019.**On depth in the local Langlands correspondence**, On the Langlands Program: Endoscopy and Beyond, National University of Singapore, December 26, 2018.**On the depth preserving property of the local Langlands correspondence**, Kagawa Seminar, Kagawa university, October 21, 2018.**Twisted endoscopic character relation for tempered real L-packets (introduction of the works of Mezo)**, 9th Kurashiki Number Theory Meeting, Kurashiki Seaside Hotel, September 19, 2018.**On the depth preserving property of the local Langlands correspondence for classical groups**, The 4th Japan-Taiwan Joint Conference on Number Theory, Campina Hotel, Fukue, Goto-city, September 3, 2018.**Depth preserving property of the local Langlands correspondence for classical groups in a large residual characteristic**, 17th Sendai-Hiroshima Workshop on Number theory, Tohoku University, July 13, 2018.**Depth preserving property of the local Langlands correspondence for quasi-split classical groups in a large residual characteristic**, 5th Kyoto conference on automorphic forms, Kyoto University, June 29, 2018.**Simple supercuspidal L-packets of quasi-split classical groups**, Mathematical Society of Japan Spring Meeting 2018, the University of Tokyo, March 18, 2018.**Simple supercuspidal L-packets of quasi-split classical groups**, Algebraic Number Theory and Related Topics 2017, RIMS, December 6, 2017.**Relative trace formula of Jacquet-Rallis**, 8th Kurashiki Number Theory Meeting, Kurashiki Seaside Hotel, July 24-25, 2017.**On the formal degree conjecture for simple supercuspidal representations of symplectic groups**, 4th Kyoto conference on automorphic forms, Kyoto University, June 17, 2017.**On the endoscopic character relation**, Kinosaki seminar 2017, TSUTAYA, February 15, 2017.**On the endoscopic lifting of simple supercuspidal representations of classical groups**, Automorphic forms and related topics, RIMS, February 10, 2017.**On the simple supercuspidal L-packets of classical groups**, Number theory seminar, Waseda University, January 20, 2017.**On the character of simple supercuspidal representations of classical groups and their L-packets**, Representation theory seminar, Hokkaido University, January 17, 2017.**On the endoscopic lifting of simple supercuspidal representations of classical groups**, Workshop on Shimura varieties, representation theory and related topics, Kyoto University, November 22, 2016.**Basics of Bun_G**, 7th Kurashiki Number Theory Meeting, Kurashiki Seaside Hotel, July 21-22, 2016.**On the endoscopic lifting of simple supercuspidal representations**, 15th Sendai-Hiroshima Workshop on Number theory, Tohoku University, July 14, 2016.**On the endoscopic lifting of simple supercuspidal representations**, Number theory seminar, Kyoto University, May 13, 2016.**On the endoscopic lifting of simple supercuspidal representations**, Number theory seminar, the University of Tokyo, April 27, 2016.**On the endoscopic lifting of simple supercuspidal representations**, Algebra seminar, Tohoku University, April 21, 2016.**On the lifting of simple supercuspidal representations**, Langlands and Harmonic Analysis, Kyushu University, March 7, 2016.