Synopsis
Hida Kizuna finds himself suddenly enrolled in a prestigious defense academy after an unexpected call from his older sister. This institution trains elite students equipped with Heart Hybrid Gear to repel invaders from another realm. While Kizuna’s own abilities appear weak, his sister implements a specific strategy to help the academy's defenders. By leveraging his presence through unconventional methods, he aims to boost the energy levels of the female students. The transition into this…
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