We will study the calculation scale and time required, and develop and fine-tune applications, in order to perform large-scale simulations using the post-K computer, that will lead to elucidation of the basic laws and evolution of the universe. At the same time, we will continue to conduct leading-edge research in the fields of particle physics, nuclear physics, and astrophysics, aiming to generate findings leading up to research that will be conducted when the post-K computer becomes operational.