The Belle II Physics Week was held from Oct 30 to Nov 3, 2023 at the KEK  Tsukuba campus. The event comprises a school in the morning for young  students/postdocs of the Belle II experiment, and a workshop in the  afternoon between theorists and experimenters on a focused theme. More  than 120 participants attended on site, and more then 90% of them are  from abroad. 
The theme of this year’s Physics Week was the determination of |Vcb|,  one of the Kobayashi-Maskawa matrix elements, which is one of the  fundamental parameters of the Standard Model of particle physics.  The | Vcb| is determined from the Belle II experimental data combined with  theoretical calculations. However, there has been a long-standing  inconsistency between two methods, i.e. exclusive and inclusive  determinations. A lot of detailed discussions were made at the workshop  to understand the source of the problem, which could be in theory or  experiment, or maybe both.