Renierite, Chalcedony

カルセドニー・レニエル / カールス

Chalce was a student at Cluser E.A. who was killed by the military for fighting alongside and associating with artificial soldiers. His memories were implanted into Agate and Chrome, and his diary was discovered later.
Chrome served as his personal artificial soldier, but because Chalce taught him to speak and many other things, he became much more than that: his friend. When Chalce's father disapproved of their friendship and attempted to destroy Chrome, Chalce intervened and accidentally killed his father.
Chalce encountered Agate on several occasions, the final one being when his plane was shot down.