This project is supported by the "Program for Advancing Strategic International Networks to Accelerate the Circulation of Talented Researchers" initiated by Japan Society for the Promotion of Science (JSPS). In this project, we set the challenge of developing higher Tc superconductors in bulk and interface, as well as under extreme conditions, through the international collaborations with out-standing research groups in Europe. The objective of the kick-off meeting is to get together, share the purpose of the project, and discuss future research plans.