"The hibiscus flowers bloom at the end of the wood, and the calyxes grow red in the mountains." In April, when the human world is in bloom, the Xinyi flowers bloom, and the princess and the prince are connected by blood and cling to each other. Childhood sweethearts, secret feelings arise. When she was fourteen years old, the princess rescued the werewolf, and from then on the werewolf guarded him passionately throughout his life. However, something happened to the royal family, and the prince was nowhere to be found. The princess and the werewolf wandered in the world, suffering a lot, but accidentally entered the dark city, brutal training, the mysterious master of the pavilion, narrowly escaped death, but became the master's weapon to kill people, and finally the princess was blinded and the werewolf was frozen. In order to save the werewolf, the princess changed her name to Xin Yi and entered Wuji City. How will she obtain the good medicine and what is the purpose of the pavilion master? When loved ones meet by blood, one is a blind chess piece and the other is a devil with amnesia, how will their fate be foreshadowed? Flowers bloom and fall, prosperity dies, obsession and tragedy, rebirth and destruction, lovers of seven generations, unable to stay together for life. When the two levels of nature are finally opened and all things change, they will no longer be free.