My Senpai is Annoying(2021)

Senpai ga Uzai Kouhai no Hanashi

Being seen as a full-fledged business woman isn’t easy for Futaba Igarashi when her senpai, Harumi, treats her like a kid. Days for her are never typical, at work or outside of it, with all the antics going on in her life. As mishaps ensue, she’ll find herself growing closer with her loudmouth senpai. Maybe Futaba feels more than she lets on, but one thing’s for sure: she’s still annoyed!

(Source: Funimation)