She was supposed to be a phoenix soaring above the nine heavens, arrogantly looking down on the world and overlooking all living beings, but she devoted herself to him without any hesitation; he was the overlord of the generation who opened up new territories and expanded the territory, with eternal fame and lasting achievements. But after everything settled, he realized that what he cared about most was not the country, but her. She understands her own heart too well, so she has no regrets, she just wants him to be safe and happy; he doesn't understand her own feelings, so she understands the heart-breaking pain after losing her. When she was here, he didn't know how to cherish it. When she left, he searched like crazy, but some things could never be found, just like her and her back...