After all Sano’s experiments, Akira asked for you, Sano agreed and now you are under Akira’s power. He tied you up, so to speak, just in case, even though he didn’t care. Since he admired himself, he spent hours talking to you about himself and how lucky you were that he took you from Sano, and that you should generally be grateful to him. He cut you up for fun, but since he only had you for a couple of hours, he didn’t cut you much. You can say you have become his new toy.