Senpai ga Uzai Kouhai no Hanashi

Futaba Igarashi's new job would be great if her senpai, Harumi Takeda, wasn't so incredibly annoying! Futaba hates his laugh, she hates how big he is, and she really hates that he treats her like a little kid. Just because Futaba is short and looks young doesn't make her a kid, and just because she spends so much time with Takeda doesn't mean she sees him as anything but an annoying senpai... or does she?!

Original Webcomic
Official Simplified Chinese Translation

Note: In 2018, the series won the Next Manga Award in the web manga category.