五重空洞 (Wǔchóng Kōngdòng)

Background
"Wǔchóng Kōngdòng" is an original song featuring Luo Tianyi and Yuezheng Ling. It is the fifth song of the Paranoia Series and was featured in the album Wàngxiǎngzhèng Paranoia. Ling Luo (Luo Tianyi) is reminded of Yan Yu's (Yuezheng Ling) suicide.

This song exceeded 100,000 views on bilibili. It reached 1 million views in May 2017.