Yaritagari na Watashi no Osakan Nikki

The sex industry satisfies my sexual desire, my calling! Akari (the author), who has had a huge sex drive since she was a child, has been thinking about sex anytime, anywhere. 17 years old, she learned about the sex industry, and at the age of 22, she started working as a deli-helper for fat girls, but the customers and staff she meets there are all quite eccentric...!

(Source: Bunkasha, translated)