Whether the ending of "The Promise of Mourning" is really a tragedy, please ask those who have read this book to answer. Thank you very much

Sadly, Ah Heng became a demon and her heart was burned by the sun. Chiyou saved Ah Heng with a Pangu bow and gave his heart to Ah Heng. Chiyou is dead, so Emirates can't double suicide. He hoped that Emirates would take good care of their daughter. Chiyou's body turned into a peach grove, and Ah Heng stayed in the peach grove and never left. Changyi, the servant of Qingyang Yunsannuo Dairy Farm, is all dead. Shao Hao succeeded to the throne.