Kojirase Onzoushi wa Natsukanai

The story centers on Seto Akane, an office worker who is personally asked by the company president to become the secretary of his son, the company's managing director. Akane accepts the job out of gratitude to the president for paying for repairs to her family home, which was partially destroyed in an accident. However, the managing director is arrogant, foul-mouthed, and selfish, and doesn't do much of his job. Akane is astonished, but one day she sees the managing director brilliantly resolve a problem within the company, and she changes her mind and decides that working as his secretary might not be such a bad idea...

The story depicts the relationship between the handsome, skilled, and cynical heir of a wealthy family and the reliable Akane.

(Source: Natalie, translated)