Koshimizu Sachiko Rule 34

Koshimizu Sachiko is a character from the Idolmaster Cinderella Girls franchise. She is an idol who takes immense pride in her own cuteness, often to the point of seeming narcissistic. Witty and sarcastic, she has a sharp tongue and can come across as a sadist. She uses the pronoun 'boku', which is unusual for female characters. In the anime, she is part of the unit KBYD with Kobayakawa Sae and Himekawa Yuki, and in other media, she forms the unit Kawaii Boku to 142's with Shirasaka Koume and Hoshi Syoko. She is voiced by Taketatsu Ayana. Fan artists often depict her with short hair, sometimes in group settings with Koume and Syoko, and frequently highlight her confident, teasing personality through expressive poses and interactions.