Yu Tian, an office worker, dreamed of meeting a door called a junior high school after get off work.
He pushed it away, and when he woke up, he found that he had traveled back to his junior high school time period, and there was an extra system in his head. The function of the system was to learn what Yutian wanted to know immediately, but it could only be normal during this time period.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
