On November 13, 2017, the head of Beijing Photek S&T Development Co., Ltd., Ddickky, noted that people seemed to think that Xingchen was easy to manage because she was the company's only VOCALOID. He mentioned that he wanted to try to "have five to take care of" to see how challenging it was to manage more characters and asked fans to "stay tuned". This seemingly hinted that there may be additional characters aside from Xingchen in the future. Later that month, it was mentioned that because Beijing Photek wanted to save money to produce content, some big news would be announced at Quadimension Live Tour rather than at a separate conference. This included new merchandise, new official art, and if there was time, new games or voicebanks. It was not specified if these voicebanks were for Xingchen or for any new characters. Details about the announcement are currently unknown.
On April 14, 2018, Ddickky mentioned that the names and designs of the fire, earth, and air characters were decided. While it was not stated what this refers to, it is possible that these characters may be part of Xingchen and Haiyi's series.
On November 9, Haiyi's Weibo account mentioned some "younger sisters", possibly referring to the other elemental characters within the series though not explicitly confirmed.
On December 23, a new character for the series was shown as a silhouette. Her name was confirmed to be Cangqiong and she was based on the element of air. A chibi bust illustration drawn by Fengye was shown on her official omamori.
On January 22, 2019, a lineup of upcoming projects was shown. Cangqiong was slated to debut on February 3. Her full design was revealed on February 2 and was confirmed to be illustrated by Kurumimi. A cover of "A Futile but Beautiful Girl Named "Love"" was announced to be in production as well as "D!slodge", an original song.
On Cangqiong's character birthday, May 20, it was announced that she would be releasing in June. It was later mentioned that recording began on May 21, indicating that there would be new samples. This may result in Cangqiong sounding different compared to her initial debut.
A new demo was shown on June 29 and she was put up for preorder on taobao. She was slated to release on July 12.
On July 1, due to the product being smoother than expected, the digital version's release would come sooner. After the second demo's release on July 5, the digital release was expected four days later on July 9 instead.
On July 13, it was noted that Cangqiong's voice database usage up to the "Fairyland" album did not use Synthesizer V but a different voice synthesizer entirely. Napstina later confirmed this to be be UTAU.
Cangqiong's Synthesizer V voice database was retired upon release of Synthesizer V Studio and was replaced with one that was compatible with the engine in July 2020. Physical packages were still available as a collectable item, but did not contain activation codes, thus making the product unusable.
Voice Database Information
|涟漪 (Liányī)||YouTube bilibili|
|希望悬空 (Xīwàng Xuánkōng)||YouTube bilibili|