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I looked everywhere, couldn't find it! Please help me out!!

You can go to the drama's info on Baidu: https://baike.baidu.com/item/%E7%9D%80%E8%BF%B7/65250618.

Then go to the Soundtrack (音乐原声) section.

There is a list of the OSTs. Look them up on the internet. YouTube will do if you can access. Use the title (歌曲) in the first column and/or the singer's name (演唱) on the second column