吸血鬼禁断双生夜 (Xīxuèguǐ Jìnduàn Shuāngshēng Yè)

Background
"Bloody Valentine" is an original Japanese duet song featuring Kagamne Rin and Len. The Japanese version is exclusively featured in the album Zhònglì Huànxiǎng Qū. In 2014, a Mandarin duet version was published on bilibili and features Luo Tianyi and YANHE. The Mandarin version is featured in the album Fàngxué Hòu de Wénxuébù.

Lyrics
Chinese=

Official Japanese lyrics as presented in the Zhònglì Huànxiǎng Qū album. ''Note: The Japanese lyrics have spelling, wording and grammatical mistakes. Sometimes they hardly make sense in Japanese.
 * -|Japanese=