Haruko's Sunny Day

Even a top-notch secretary can struggle with love.
Work is efficient, but romance is a mess.
Haruko Akizuki works as a temp secretary, helping to support everyone from top corporate officers to ordinary individuals.
Her work is flawless, but she has a weakness for falling for her employers, who each have their quirks…

(Source: Houbunsha, translated)

Note: Includes three extra chapters.