So... is Senpai ga Uzai Kouhai no Hanashi finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: December 26, 2021
Manga finished: February 03, 2025
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
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Synopsis
Futaba Igarashi, a petite and hardworking saleswoman, navigates her daily life at a trading company while constantly being teased by her senior colleague, Harumi Takeda.
Takeda's boisterous personality and habit of treating her like a child often frustrate Futaba.
However, she also recognizes his dependable nature and willingness to assist her and their colleagues whenever problems arise.
The anime follows their evolving relationship as they spend more time together, hinting at a connection that transcends their roles as merely senpai and kouhai in the workplace.