Why Is My System Unfamiliar with Me?

When he wakes up, he becomes the master of Jingyao School and obtains the destiny node system. But why don't I seem familiar with this system? No, how come the proficiency I added was added to my junior sister? No, why is the junior sister looking at me with admiration? No, how come the junior sister's proficiency is increased tenfold on me? No, why should I usurp the destiny? Open Destiny Node 1: What? Am I the one wanted by the school? There is no other way but to develop obscenely first. Open Destiny Node 2: What? I've already reached a small level of cultivation and you tell me that I can't develop anymore. You want me to go out with the army? Open destiny node three: millions of troops are crawling below, I am destiny!