Mika Usa (25), an office worker who hates uncles, apologizes to her boss every day. However, her father's debts and disappearance were discovered, and Renji Kikuya (45), the president of a financial company who looks like a yakuza, asked her whereabouts of her father. Suspicious and fired... Unable to see the urgency of the situation, Renji hires her at his own company to take responsibility, but what will happen to Mika's fate...!?