"Annual Ring" is an episode of TV series "Hua", composed by Silent King and sung by Diamond, the champion of good voice. Following the exposure of "Unexplained Hidden" and "Fire in My Heart" and reaching the top of major music charts, the third bomb of Huamei OST, which was created by Haidie Music and invited by the gold team, was also unveiled. This annual ring, composed by the talented composer Silence Wang and the champion of The Good Voice (Watch Online), was officially released today. The sadness contained in Diamond's voice is integrated with her Korean lyric singing style, which is refreshing, and makes the whole song convey to the audience the sadness of "the most poisonous hatred in the world, which is doomed but inseparable", reminding the audience of the beautiful but desperate love in the play. Then the silent king also sang the annual rings.

With this song, Diamond won the award of "20 15 most potential favorite female singer".