Cheer-chan

Cheer-chan is a major character in the Tawawa on Monday series. She is a cheerleader at Ai-chan's high school, as well as a popular swimsuit model. She is normally seen wearing either bikinis or outfits that help conceal herself from the public eye; which consists of a beret and oversized glasses. And, like all other female characters in the series, she has rather large breasts. (Source: Getsuyoubi No Tawawa Wiki)