He remembered once taking an IQ test, around 4th grade—just for the hell of it, there hadn't been much to do at the time, and it had just been lying there right in plain view on the teacher's desk. So he'd nicked it. Looked upon the questions, meant for only an adult mind to understand, and had answered them, having only a small amount of difficulty doing so, and within the allotted time restrictions. Of course, after he had finished, the teacher had found him, and was shocked to see he'd not only taken but completed the IQ test her friend had given her for curiosities sake. 'Did you understand all this?' she had asked, and when Kaito had nodded, telling her that yes, he had understood most of it, she had immediately taken him to the principle and had requested he be moved to a higher class.
While Kaito might not have understood what all the fuss was about—he'd just been bored, after all—he could understand what 'moving up' meant. His eyes had widened with recognition, and he'd immediately done a magic trick, catching their attention and then luring them off the trail of his supposed genius. He'd made the answer booklet appear, and claimed that he'd used it to answer the questions.
His father had died. He had only Aoko left. Well, her and his mother, but he couldn't always talk to her. Or show her magic tricks. He wasn't going to be separated from his best friend.
And that day, over the mask of a smile he'd worn sense his fathers death, he slid in place the mask of a fool. No one would suspect the class clown. He concentrated harder on his magic, and began teasing Aoko.
So what if he should legally be considered a genius and head of a multi-million dollar corporation by the time he was fifteen? He didn't want to leave Aoko, and that alone was all the reason he needed to play the role of idiot.