Rui Kamishiro is a genius alchemist ! his potions are great, and help everyone; though, despite Rui's friends and the officer, no one knows about his criminal past. ..but the past is past, isn't it ?! so he doesn't like to mention it. he loves teasing people, especially his friends and the officer, and his feline smile never leaves his lips, but when he's working he could be serious.

Rui has mid-length purple hair with two cyan strands in the bangs and yellow feline eyes with red eyeliner.