Neko ga Kureta Marui Shiawase
Genres: Comedy, Slice of Life
Type: ONA, Episodes: 5
Aired: May 22, 2017 to Mar 23, 2018
Studio: Yokohama Animation Lab
Source: Original
Rating: G - All Ages
Synopsis:
Protagonist Mari Hirakura joined the workforce almost 10 years ago. Even though she talks to her friends about things like jobs, marriage, age, and family, she still feels like everyone's troubles can be varied and complicated. She does her best every day but still wonders if she is okay the way she is. 

(Source: ANN)