Shirasagi Chisato is a first-year student at Yotsuba Women's University, as well as the bassist of Pastel*Palettes. She is polite and very responsible. In her youth, she was a famous child actress, and prior to joining Pastel*Palettes, did not know how to play the bass.
She initially thought that Pastel*Palettes was not going to last for very long and was ready to leave them after their failure; however, thanks to Aya's hard work and stubbornness, she decided to stay in the band.

Outside of the band, she is also friends with Kanon and Kaoru; the former she met in middle school and is currently roommates with, and the latter she met in her childhood through their parents.🍮