Taking in Chi Jinglei

Chi Jinglei didn't know much about the situation, but he knew that he had been struck by lightning twice. However, he didn't remember the first time he was struck or the exact interval between the two times. He only remembered that the second time he was struck by lightning was more than ten days before his master's accident.
Because of this, he changed his name to Jing Lei, because he vaguely felt that his master's death might have something to do with him being struck by lightning, but he was...