Shirasagi Chisato is the bassist of Pastel Palettes. She is polite and very responsible. Prior to joining Pastel Palettes, she was a child actress and did not know how to play the bass. Outside of the band, she is also Kanon's and Kaoru's childhood friend; the former she met in middle school, and the latter a lot earlier through their parents.
Chisato is normally very polite and friendly, and gets along with others fairly well. However, she also has a surprisingly blunt side to her personality and can come across as cold or condescending. This personality is not always provoked, though she tends to be blunter when she is annoyed or around Kaoru, as she does not appreciate her dramatic personality.
As she has been in the entertainment industry for a long time, Chisato is quite a realist when it comes to it and disliked Aya's idealistic view of it at first. She gets slightly embarrassed by people bringing up her past and past works as a child actress. She also dislikes when everyone thinks that she can do anything.
(Source: BanG Dream Wikia)