What? My Sister and I Awakened the One-of-a-Kind Class?

Lin Bai transmigrated into this world and missed his chance to go to school because he had to support himself and his younger sister. Without the chance to awaken, he thought his life would stay this way forever. But the moment his sister awakened, his late-arriving golden finger finally showed up. Ding! The Twin System is now online. With the System, all sorts of formidable people gradually gathered around Lin Bai. Sorry, having a System just makes me this damn awesome.