Bank employee Yu Chao is bullied by his colleagues into footing the bill during a bill-counting contest, and secretly pines for the cold and aloof Meng Yiran without daring to speak up. On the night of his thirtieth birthday, he walks into a club hoping to lose his virginity but can't get it up. Without thinking, he wishes for faster bill-counting skills, and his fingers suddenly vibrate at high speed like the hand of Kato Taka. With his golden finger unexpectedly unlocked, his pathetic life is completely transformed from then on.