Shuāngxiàng·Lúnhuí yǔ Xìngfú (双向·轮回与幸福) (Bidirectional·Reincarnation and Happiness) is a collaborative album between JUSF and Sya. It contains the 8 remastered songs of the Bidirectional Series and a brand new 9th song, 双向遗忘 (Shuāngxiàng Yíwàng). The album features Luo Tianyi, YANHE, and Yuezheng Ling.
A crossfade of the album can be seen on bilibili.
It was available for purchase through taobao for two different prices. For 50 RMB, customers would receive the album and a keyring charm of one of the characters. For 80 RMB (70 RMB if purchased between August 27th - September 10th), customers would receive the album, bookmarks, and all four keyring charms of Ling, YANHE, two Tianyi's (representing her split personalities). The album is no longer available.