Asei Tezuka is an Associate Professor at Waseda University's School of Fundamental Science and Engineering, specifically within the Department of Applied Mechanics and Aerospace Engineering. His academic journey began with a Ph.D. from The University of Tokyo, followed by research positions at both Waseda University and The University of Tokyo's Graduate School of Engineering from 2003 onward. Currently, he holds concurrent positions at the Waseda Research Institute for Science and Engineering (2024-2026) and is affiliated with the Global Education Center. Dr. Tezuka's research spans multiple areas within aerospace engineering, with primary focus on aerodynamics, computational fluid dynamics, flow instability, micro air vehicles, and flight management. His work bridges theoretical analysis with practical applications, particularly in low Reynolds number flows relevant to micro-aircraft and space exploration. He has developed innovative measurement techniques, including laser displacement sensor methods for pressure distribution measurement, and has contributed significantly to understanding laminar separation bubbles and flow control mechanisms. His research output shows a clear progression from fundamental fluid dynamics studies toward more applied aerospace problems. Early work focused on global stability analysis of various geometries (cylinders, spheres, spheroids), while more recent publications address practical challenges in flight management, Mars entry vehicle dynamics, and optimization of cruise altitude selection using real-world data. A consistent theme throughout his career is the investigation of flow separation phenomena and methods to control or optimize these flows for improved aerodynamic performance. Dr. Tezuka actively contributes to multiple research projects funded by organizations including the Japan Society for the Promotion of Science and the Ministry of Land, Infrastructure, Transport and Tourism. His current work includes studies on hypersonic vehicles, air traffic management systems, and plasma actuator applications for flow control. His teaching portfolio at Waseda University encompasses core aerospace engineering subjects including Fluid Mechanics, Airplane Flight Mechanics, and Advanced Aerodynamics, demonstrating his commitment to educating the next generation of aerospace engineers.