司天监三弟子杨千幻曾经人们口中的天骄，自从许七安横空出世后，他所有的荣光便不复从前。杨千幻努力求索，可换来的却是监正一句“天命使然，早已算定”，杨千幻在沉沦中奋起，展现自己“不信命”的天命。

故事講述主角許七安身為大奉朝的打更人，在動盪詭譎的江湖與廟堂之間成長歷練，歷經重重危機與權謀交鋒，最終從一介小人物崛起，成就傳奇的英雄之路。小說融合了懸疑推理、仙俠奇幻與權謀鬥爭，情節縝密，角色鮮明，為讀者打造了一個既有熱血豪情，又充滿燒腦智鬥的奇幻世界。

Once celebrated as a prodigy, Yang Qianhuan, the third disciple of the Imperial Observatory, is cast into obscurity with the rise of Xu Qi'an. Despite being told that his fate is sealed, he refuses to surrender, determined to defy destiny and reclaim his place through his own strength.