Masou Gakuen HxH

Hida Kizuna possesses a Heart Hybrid Gear, a specialized combat ability that unfortunately lacks the power to make him stand out. Recognizing his potential in an unconventional way, his older sister arranges for him to transfer to an elite strategic defense academy. At this unique institution, students utilize their own Heart Hybrid Gears to fend off relentless invaders from another dimension. These pilots, many of whom are well-endowed young women, engage in high-stakes battles while wearing remarkably revealing combat suits designed to interface with their gear. While Kizuna’s personal combat prowess falls short of the academy's demanding standards, his sister has orchestrated a highly unorthodox role for him within the school's defensive strategy. It is revealed that intimate and erotic encounters with Kizuna possess the extraordinary ability to replenish the girls' energy reserves and significantly amplify their combat capabilities. Thrust into this unexpected position as the key to his classmates' survival, Kizuna finds his new academic life destined to be filled with constant embarrassment and overwhelming situations far removed from a typical education.