Thousands of Reincarnations, Only You Are in My Heart

The main story of this novel is that the male protagonist's master died in the imperial war and left a suicide note, which said that the emperor is not the final state, and the prerequisite for breaking through that realm is to reincarnate for seven lives and gain seven emotions and six desires. From then on, the male protagonist went to the sky to find the reincarnation of the master, and was entangled with her confidante. The ending will have some regrets.