"Dānxiàng Sūxǐng" is the eighth song in the Bidirectional Series and it features Luo Tianyi and YANHE. It is a followup to 双向监禁 (Shuāngxiàng Jiānjìn)'s events. YANHE is in the asylum, regretting the fact that he did not tell Tianyi his true feelings for her earlier and he wanted to try to reverse the ending by choosing to confess his love to her. However, Tianyi killed him anyways so that "they" (referring to her split personalities) would not lose him again. In the end, there was a moment when Ling says, "I think I knew them before...". This song has exceeded 100,000 views on bilibili.