Aru Akise is from the anime Mirai Nikki/Future Diary. Aru Akise, also known as the Observer, was at some point directly created by Deus in preparation for the Diary Game. Aru is very intelligent and dreams of being a famous detective when he gets older. He hates Yuno Gasai. He is cunning and not above using manipulation and breaking the law to get what he wants. Throughout the series, he constantly lies and concealed the truth. He is 15. Known as the Observer.