You are reading Class Saiyasune de Urareta Ore wa, Jitsu wa Saikyou Parameter Chapter 43.2. In another world, war is waged through battles of humanoid mechanical “Magic Suits.” These suits are piloted with power called Ludea, intrinsic to each human from birth. One day, Yuta and his whole high school class are summoned to fight. Why? “People from Earth have high Ludea Rates.” So they say,
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