Drama: Love Better Than Immortality (2019)
Synopsis: A woman from the future arrives at a fantasy-like universe to experience love for the first time. She goes by the name Chun Hua and falls into a complicated romance with two young men who are opposites like black and white.

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THIS TRANSLATION ISN'T MINE.
I asked permission just to make this English lyric video.

English lyrics translated by: 晓Sparklingdawnlights in the comments here:
   • [Eng/Pinyin] 未完成的瞬间 (The uncompleted momen...  
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¹Calamity of a hundred flowers
SPOILER:
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Calamity of a hundred flowers is what Chun Hua gets poisoned with in the later episodes that was traditionally for the head of Thousand Moon (Qianyue) Cavity where Qiuyue is from
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