A 17-year-old member of "Undertaker" who is an expert in knives and grappling.
Arugo Tsukishima is a second-year 17-year-old student at Ryusen High. He is a member of Undertaker, and is skilled with handling knives.
The original character art for Arugo was created by Redjuice Graphics. He first appears in Guilty Crown episode 1. His Japanese voice actor is Anri Katsu.
Arugo is first seen in the battle between GHQ and Funeral Parlor in Roppongi. He aids his allies in the rescue mission of the inhabitants when GHQ threatens to kill them if Funeral Parlor will not surrender.
In training, Arugo asks Shu about his abilities and whether he can pull the Void from anyone. During Shu's training test against Ayase, Shu encounters Arugo and makes eye contact with him. Suddenly, Shu rushes at Arugo and pulls out his Void. Shu uses Arugo's Void to blind Ayase.
He doesn't take out voids, but he has a void taken out from his body by Shu. His void is a device that blinds the enemy in a ball of darkness. Shu uses his void when he blinds Ayase's Enclave to get to the goal during training.