China Hōjō forms the Chocorat Sisters alongside her twin Mina, a first-generation singing duo within Sweetfish Productions' Lovely Idols group. Together, they perform as singers and both harbor romantic feelings for their manager, Tomohiro Fujisawa. China exhibits a touch of tsundere in her interactions, contrasting Mina's more polite and slightly goofy nature, placing them among the agency's idols enamored with Tomohiro.

The Chocorat Sisters, including China, actively contribute to group performances and songs like "Shiawase Kakumei" (Happiness Revolution), "Kokoro no Yajirushi wa Uwamuki" (The Arrow Marker of the Heart is Pointing Up), and "Maid Made♥" across Lovely Idols generations. China's characterization remains primarily defined through her role in the established twin duo within the broader idol group dynamics.