Juku x Kare

The office lady Mika Usa doesn't like dealing with "oji-sans" due to issues with her father. At work, she often has to apologize to her boss because of it. One day, Renji Kikutani, a shady-looking man, comes to Mika's office and tells her that he is looking for her father, who owes him a lot of money. The suspicious activity between Mika and Renji causes her to lose her job. When somehow Renji finds out, instead of selling her out, he offers her a new job at his finance company, saying that he will take responsibility for her…?

(Source: Cocohana, translated)