This paper introduces and studies a new class of star-like mappings in complex analysis. We establish sharp coefficient inequalities for this class and provide a complete solution to Fekete-Szegö inequality. An analysis begins in classical setting of open unit disk, then extends to higher-dimensional complex spaces, including the unit ball I(B ̌) and unit polydisk I(Un)  in a complex Banach space and Cn respectively. Our results generalize several classical theorems in geometric function theory, revealing new insights into the behavior of starlike mappings in abstract settings. A detailed comparison with existing results demonstrates the significance and novelty of our findings.