We are organizing an international workshop every year as a joint activity of the Extreme Universe Collaboration. Next year we will organise the workshop, "Quantum Information, Quantum Matter and Quantum Gravity", which extends for five weeks (Sep.4 - Oct.6). The registration will be open after April 2023. We have a new webpage for this workshop, https://www2.yukawa.kyoto-u.ac.jp/~qimg2023/index.php.