Plasma and Fusion Science “Plasma”, the most natural material state in the universe, is a charged particle system with an extremely high degree of freedom. The study of complex phenomena produced by such plasmas is crucial in nuclear fusion; expected to become the next generation energy source, space and astrophysics, and new material science. For this purpose, we develop statistical turbulent theory, nonlinear dynamics, and methodology of various numerical simulations. In particular, we challenge large scale numerical simulations utilizing massively parallel super computers based on kinetic and fluid models. We also attack the problems of high power laser-matter interaction which opens up a new science field such as laser driven compact accelerator and laboratory astrophysics.