田中ケイコ
Main character from [[Ado (utaite)|]]'s [[Atashi wa Mondaisaku]]. Regularly depicted with (exaggerated) facial expressions.

Designed by [[eiri7hamono]], see pixiv #108136415.

Name confirmation by the designer: https://twitter.com/eiri7hamono/status/1704522446815351161
tanaka keiko (ado)