Lin Wan, a doctoral student in the Department of History, accidentally traveled to the Kangxi Dynasty. With his familiarity with Qing history, he met the fourth elder brother Yinzhen and the thirteenth elder brother Yinxiang on the street. When she first entered the undercurrent of the palace, she skillfully navigated the whirlpool of nine sons competing for the right to inherit the throne, and used modern wisdom to make suggestions for Yinzhen. From seeing through the eighth prince's conspiracy and trap to helping Yinzhen resolve crisis after crisis, Lin Wan worked step by step, from acquaintance to hand in hand with Yinzhen. See how she rewrites history and helps Yinzhen ascend to the throne. And where will this friendship that emerged during the power struggle go? Help Yinzhen move forward steadily in the battle for the right to inherit the throne. Palace intrigue, brotherhood, and the game of life and death are intertwined. Let's see how a time-traveling woman changes the story and rewrites the legend of Yongzheng's ascension to the throne!