Because Five Colors Team and Yanhe are not planned by the same team┌(?_ゝ`)┐

Japanese Yamaha Company (the R&D company of VOCALOID) has just started to promote Chinese V-family in China At that time, in order to allow the promotion to proceed smoothly, the "VOCALOID CHINA" trademark was temporarily handed over to Shanghai Henian Information Technology Co., Ltd. (currently the operating company of Luo Tianyi, Yanhe, and Lezhengling) to be responsible for domestic operations.

In 2011, He Nian, as an agent operating company, began to collect sound library images for VOCALOID CHINA PROJECT (referred to as VC P), and in 2012 released the Luo Tianyi sound library, as well as the sound library including Luo Tian The characters of the VCP five-member group including Yi Hele and Zheng Ling.

However, the copyright of the image of the VCP Five and the VOCALOID CHINA trademark belongs to Yamaha Corporation. (Later He Nian bought back the copyright of the five-person group from Yamaha and released the Lezheng Ling sound library, but that was already a thing later)

So in 2013, He Nian wanted to launch When creating a new VOCALOID sound library, the character settings of the five-member group and the VOCALOID CHINA trademark cannot be used casually. So He Nian re-collected characters, and Yan He was born. At the same time, He Nian also created a new trademark "Yanhe PROJECT" to show the difference from the 5-person group.