Only songs that feature Yuma as a main vocalist would be added to this demo table. It should also be noted that certain songs may not be involved with the early invitation and were added based on the company's preference. Certain users were invited to create songs using earlier versions of the voice database and release the songs in sequence after the product's release as a complement to official demo tracks.

↑ - These songs were featured in an official bilibili playlist featuring demos and recommended songs.

On October 7, Yuma and Natalie officially released as digital copies, with starter packs available from Dreamtonics and AH-Software Co. In order to preserve that atmosphere, some inappropriate comments were removed, and Dreamtonics apologized for the behavior. Dreamtonics noted that they would be investigating potential duplicate names in more detail in the future to avoid the situation from happening again and hoped that the video comment sections would maintain a friendly atmosphere for discussions. The incident reflected an omission in the naming process, but it was not intentional. They noted that they usually adopted the method of internal investigation to verify and avoid the duplication of official names of other products of the same type in the industry, but did not take account of product development codenames, resulting in the situation of Yuma sharing names with another product. Dreamtonics explained that because Yuma was a male vocal with an androgynous voice, they wanted a name that was easy for users to distinguish his gender. Fans expressed that the name shared similarity with Yamaha Corporation's VOCALOID product VY2, whose codename was also known as 'Yūma' (alternatively written as 'Yuuma'). On September 26, Dreamtonics addressed the concerns regarding Yuma's name on bilibili.

I mean good news for your unpopular opinion, Xia Yu Yao isn't going to be a vocaloid, she's going on a completely different engine. yeah like, she's a thing explicitly because there was a demand for her. Both were confirmed to be compatible with the Cross-lingual Singing Synthesis, Vocal Mode, and AI retake functions. Xia Yu Yao is an utau from 2014 whose synthv was crowdfunded, she's only coming out because fans wanted her to.

Each vocal had one demo featured in their debut video and a brief description of their voice databases. On September 22, 2022, Dreamtonics revealed two new voice databases in progress: a masculine Japanese voice known as 'Yuma' and a feminine English voice known as ' Natalie'.

Xia yu yao voicebank