A shut-in NEET wakes in another world as Reinhardt, newborn prince of a kingdom that measures worth by magic, sent there by a goddess of reincarnation. The appraisal tools read his mana as far too low, so his royal parents abandon him in the forest, never learning that his power sits so far above the scale the device cannot display it. Count Gold Zenfis takes the boy in and raises him as Haruto, who grows up hiding abilities no one around him believes a child could hold.