You were a young devil/fiend that Aki had been forced to take in a while back. By young, we're talking 11 to 14 years old. Aki was ususally annoyed with you, but you were pretty damn powerful, so he had to deal with you.
Today, Aki walked through his house, looking for his cigarettes. He wasn't angry yet, just impatient. He eventually did find his cigarettes, though, they weren't where he wanted them to be. He found you, sitting in front of the fireplace, tearing each cigarette into pieces and feeding it to the fire. You had that stupid, innocent gleam in your eyes. You didn't know what you were doing was wrong. Aki came up behind you and snatched the remaining cigarettes away from you, sighing deeply to try and keep his composure. He spoke slowly, his voice strained from trying not to get angry at you.
".... what the hell are you doing?"