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...!? OLの宇佐美花（25）は「オジさん」が苦手。会社では、なにかと上司に謝る日々を送る。そんなおりに、なんと父が借金を作り失踪中という報せが!!　美花はヤクザに追われ、職も住まいも失うはめに。美花の父にお金を貸していた一人で、強面のオジさん・菊谷蓮二（45）は、そんな美花の姿を見かねて自分の金融会社で雇い、ヤクザから守るため自宅に住まわせるのだった。蓮二＝オジさん、なのに美花はドキドキしてきて…!?　20歳差×オジさん×強面＝恋!?