Ishizue Arika

性別
男性
年齢
20
Arika lost his arm in the events preceding DDD to his little sister, Kanata. After one and a half years of rehabilitation, he was then discharged from the hospital and began searching for an artificial arm. Matou, who is in charge of him, introduced him to Karyou Kaie, saying that Karyou Kaie was a dilettante with rare prosthetics.

Arika suffers from a rare type of amnesia - "day-to-day memory loss." Arika loses the memory of what happened during the day. He remembers in succession what happened at night, but only the events during the day are reset when night comes. He keeps a memo pad on hand and only writes down what he wants to remember.

"My creed is that I want to live the easy life. Having a body that forgets the stupid stuff suits me fine."