Aino Hingo used to work as an associate professor of ethnology. He now works as the director of a matchmaking agency. His assistant is Sister Elizabeth. The high entrance fee at the matchmaking agency is two million yen, but the matchmaking agency has a 100% success rating for their clients getting married. They match customers based on the client's conditions. The secret behind their 100% marriage rate is Shingo Aino's counseling, relying on his knowledge in ethology.

藍野真伍が所長を務める「藍野結婚相談所」は、入会金200万円、会員は恋愛禁止、成婚率100パーセントを謳う風変わりな結婚相談所。結婚相手を探し入会する男女に、藍野は元動物行動学者の知識を生かして、適格な相手を紹介する。

결혼 성공률 100%를 자랑하는 결혼 상담소의 독설 넘치는 소장과 수녀 조수의 이야기를 그린 드라마