This workshop unites researchers from Nagoya University and RIKEN to explore the forefront of "Prediction Science," an emerging field that synthesizes computational science (the third paradigm) and data science (the fourth). We will delve into its mathematical foundations-including data assimilation, topological data analysis, artificial intelligence (AI), and machine learning (ML)-and showcase their practical applications in diverse fields such as meteorology, space science, biology, and medical science. As the world confronts pressing global issues like environmental change, population dynamics, and public well-being, the role of Prediction Science is more critical than ever. This workshop is designed to foster vibrant, interdisciplinary discussions and forge new collaborations among both established and early-career researchers.