夏乃ごーいんぐ！
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manga Releasing 5 Vol.
-Description
From MangaHelpers:
This 4-koma manga follows the daily life of Natsuno Yoko, a tiny woman with a big personality. Natsuno has had a very small body and voice since birth, and that's still the case when she's grown up and working as an office lady. She works very hard, though, and has a memorable attitude and way of going about her work. [tethysdust]