Akira saved for three years model 9821 computer; when it goes on sale he runs to the store only to find it sold out. Discouraged, he heads home; he discovers a man in an alley who happens to have the computer he was looking for. He excitedly buys the computer and runs home only to find that he didn’t purchase a 9821 but a 2198, a super advanced biomechanical computer girl named Mimi.