Mu Ziyu, an ordinary college student in China in the 21st century, is 22 years old, senior year, nearing graduation, standing at the corner of this ivory tower and society, and is facing the confusion and helplessness of leaving society and the employment pressure and survival pressure that he has never felt. He can never see his future direction in this busy steel jungle. When he was young, he also imagined his bright future late at night, but as he grew older, he gradually lost his former self-confidence. With the influence of seniors and relatives and friends, he became more and more inferior. Many times he thought that his greatest achievement in the future might be to completely pay off his mortgage one day in decades, and then leave this world when the candlelight of life burned out, just like he had never been in the future.