A character from [i][[Getsuyoubi no Tawawa]][/i]. Presently the second most frequently recurring character in the series, and the second female protagonist of the ONA.

A clumsy yet reliable office lady. Her name derives from the junior-senior relationship between her and [[senpai (tawawa)|Senpai]], her male colleague that almost always accompanies her in her appearances. Senpai is particularly protective of her, especially since she is very prone to putting herself in compromising situations while drunk.

She is voiced by [[Kayano Ai]].
後輩ちゃん