Following the whole ordeal involving Edward and Crystal, he proceeded towards the location of his ship, experiencing a sense of contentment regarding his scheme on this occasion.
Some time passes…
Zen boarded his ship and directed the ship's artificial intelligence to proceed towards the coordinates of his villa.
After that was settled, he proceeded to take the amethyst earring from within his ring. This artifact was called 'Amélioration des sens.'
With great scrutiny, he meticulously inspected the intricate craftsmanship of the item. Once Crystal activated the artifact, its aspect underwent a notable transformation, transitioning from a gentle shade of purple to a dark purple.
Based on what Zen can remember from the novel, it appears that the Amélioration des sens artifact possesses the capability to enhance the sixth sense of a human five times.