Library

In this familiar county, a group of ignorant teenagers met in a strange school - Xiachuan Middle School. In this strange school, I met people worth remembering and admiring in my life. The three years of high school carried many memories and a lot of time passed by! In Xia Chuan, a key high school, everything develops as usual. But on this ordinary campus, Wang Huainan experienced a different experience, while Sun Zewen became famous because of winning the science and technology innovation competition. Liu Meng also went to a well-known university, and their three-year high school journey was also separated due to graduation. Wang Huainan went to the United States, Liu Meng went to a well-known university in Beijing, and Sun Zewen also started his own college life. The best friends who have been together since childhood are living in different places. Each of them is thinking about when they can meet together in the future...

The earth should have been peaceful, but due to a signal from an unknown alien civilization, alien races entered the earth. At this time, Liu Hua wanted to change the war through time travel, but he never thought that Liu Hua would be involved in this foreign invasion again. Liu Hua also changed the future because of traveling back to the past. So far, he has met people he shouldn't have met, and lost things he shouldn't have lost...