Sato Shinohara is a young lady who grew up in a normal family that runs a popular cafeteria "Manpuku-ya". She has a strong and cheerful personality which makes her very loved by the customers. Kenta Miyama is the second son of the famous elite Miyama family that has existed for more than 400 years since the Edo period. He is bright and well-educated and has left his home for years due to his dislike towards his dictatorial father and the weird customs in the family. The two fell in love and got married but Kenta's father made them live in the Miyama family's home again. Due to the differences in backgrounds and traditions, Sato struggles to fit in and has complicated relationships with the family members. However, Sato decides to "fight" and change Miyama family into an ordinary family, something Kenta has been wishing for.