CuSummer, also known as Cu Xia (Cu夏; Cu Xià) and Xia Tongzi (夏铜子; Xià Tóngzǐ), is a Chinese VOCALOID producer who is part of the two-person Chinese group ChiliChill with Yu H., which was formed in 2020. CuSummer was active as an independent musician no later than 2014. She was born in Tokyo, Japan, though moved to China when she was around 10 years old. The first time she worked with Chinese VOCALOIDs was when she was invited to participate in the official Luo Tianyi album Lost in Tianyi, composing the music and lyrics for the song "Monologue".
As for ChiliChill, "Yè Háng Xīng" was their first collaborative work, but "Xīnsuì Shāojiǔ" was the first upload as under the group's name and it was widely praised upon release, inspiring the two producers to continue working together and upload more works as a group.
|"心碎烧酒"||Luo Tianyi||March 11, 2020||music, video|
|"我的悲伤是水做的"||Luo Tianyi||April 10, 2020||music, lyrics, tuning, mixing|
|"万分之一的光"||Luo Tianyi||July 12, 2020||music, string orchestration|
|"山遥路远"||Yuezheng Ling V5||May 22, 2020||music, percussion, drums, strings arrangement|
|"丑马"||Yuezheng Ling V5||April 12, 2021||music, lyrics|
|"饿魔烧酒"||Luo Tianyi||September 1, 2021||music|
|Vsinger||"Lost in Tianyi"||Luo Tianyi||March 1, 2019||(compose, arrange, lyrics, tuning|
|Vsinger||"Moments"||Luo Tianyi||July 12, 2020||compose, arrange, lyrics|
|Vsinger x BEMOE||"Special Wishes 2021"||Luo Tianyi, YANHE, Yuezheng Ling, Yuezheng Longya, Zhiyu Moke, Mo Qingxian||December 11, 2021||music, lyrics|