Rei Katsura

Rei Katsura (桂 レイ) is a main character in Digimon Universe: Appli Monsters. His Buddy Appmon is.

Appearance
Rei is a teen-aged boy with pale skin, gray-green hair and red eyes. He wears a black hooded jacket over a gray hooded sweatshirt. He also wears dark blue pants with a white zipper pattern, and white sneakers.

Etymologies

 * Rei Katsura (桂 レイ)
 * Ja: Katsura (桂). Japanese surname that means "". Might also refer to the or  as a reference to the.
 * Ja: Rei (レイ). A Japanese gender-neutral name. Possibly from Reidoramon (レイドラモン), although it can also means "zero"(零 Rei).

Fiction
Rei is an Appli Driver paired with. He is aware of Haru Shinkai's existence. Soon after Haru and collect their first 7code Appmon Chip with, Rei and Hackmon obtain their own when they defeat a cornered. Hackmon comments that Haru has obtained his first 7code Appmon, and Rei says that he "couldn't" allow Haru to reach Leviathan. On November 3, he sees Eri Karan and on television and declares that things are getting interesting.