The story focuses on two virtual idols, native Japanese speaker Kilin (CV: Minori Suzuki) and Chinese speaker Xi (CV: Emiri Iwai/Singing Voice: Xiao Wu), who are created by a mysterious producer Bunny P (Seira Ryu).
The official website for the upcoming live animation Heart x Algorhythm has announced that it will start streaming in Japan and China on August 17.
Kilin and Xi are designed by KEI, best known as the original package illustrator of Hatsune Miku.