"From pebbles to mountains and mortals to Gods; Everything that is above and under heaven has Perception."
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When Aldrich had created the Shadow Homunculus, he just wanted an Item that could devour other Items to save space in his Inventory.
He did not even know that its name would be changed to "Shadow Homunculus", much less the idea of it having intelligence. Why in the world did he need an Item that could think for itself? Aldrich had considerable knowledge related to AI. And as much as he was a fan, he also knew the humans weren't ready to tackle such artificially intelligent beings. But he had already invested his Experience Points to create the Item, and the result wasn't half bad.
Unknown to Aldrich, the Shadow part in the Item's name wasn't just for show. There was a reason that the Item could hide in Aldrich's shadow. Aldrich wasn't just experienced enough to know about such things.
The Devil, though, knew it.