Yan Ming, the director of the Si Tianjian during the Warring States Period of Qi, encountered a vision of bloody stars at the observatory and accidentally traveled to a modern campus more than two thousand years later. When he tried to adapt to a new life as an "amnesia transfer student," he discovered that the bronze astrolabe, the rift in time and space, and the appearance of the mysterious antique dealer Ma Shiqing were no accident. Some people coveted the power of time travel, and some tried to tamper with history. The birthmark on his wrist, the cipher text in the ancient book, and the archaeologist grandfather of the modern girl Lin Mo were involving him in a time and space conspiracy spanning two thousand years. When the celestial phenomenon of seven stars descends again, Yan Ming not only has to find his way home between technology and ancient books, but also uncovers the fatal truth behind the "two-way time travel": Are the seemingly coincidental thefts of cultural relics, campus monsters and identity substitutions an opportunity to save his motherland, or a trap that drags two time and space into an abyss? Is the astrolabe he holds the key to his return, or the core of a conspiracy? In the dual game between modern allies and ancient pursuers, Yan Ming must make a choice before the rift in time and space closes: should he return to the Warring States Period to turn the tide, or should he stay in the modern world to protect the bonds of rebirth?
