During a lunch break in the year 2000, Ji Kang couldn't bear the temptation of sleepiness. He leaned over his desk and had a dream that made him breathless. This dream not only subverted his real life, but also subverted his imagined life. This made him sincerely excited, who was quite dissatisfied with his current state of reality, and made him look for his beautiful dream even more cheerfully. And reality is reality, and a series of events are quietly turning tragic...