《再。見》概念迷你專輯裡的歌曲主題、都旋繞著末日與告別。專輯利用不一樣的曲風編寫、想帶給聽眾不一樣的聽覺享受。同時也要傳達珍惜在身邊的每一位家人和朋友。 因為、你不知道何時會《再。見》到他們。 或這一次、將會是最後的《再。見》? ZHAO's Debut EP [Good.Bye] revolve around the theme farewell. Using different element and genre(EDM, Rock and ballad) , ZHAO aim to create a different emotional dimension when you listen to the EP to understand about embracing farewell and use it as a motivation to move forward in life through the music.