Rin Suzune is a nine-year-old girl who, due to her parents' deaths, lives alone and runs her family's restaurant by herself. Since she is a child, she lacks the proper knowledge to cook good food and manage a business, so her attempts to make money are unsuccessful. To make matters worse, she is bullied in school for being poor! But through it all, Rin remains resilient. Although her restaurant's food is not the greatest, local residents are drawn to the establishment, hoping to lend Rin a hand because of her sincere nature.

During the Taishou period of early 20th-century Japan, Haru Asagi is sent to work as a maid to support her struggling family. The Miyanomori family, which she serves, is highly influential across Japan and consists of one of the nation's top magnates and his six sons—but power and money have brought out the cruelest in these brothers. When the head of the family announces his retirement, the six Miyanomori brothers are left to vie for his position. With 18 years of experience separating the oldest and youngest brothers, frustration and competition are rife. As a result, Haru is left to deal with each of the vastly different siblings and explore the depths of their true selves. All the while, a greater conflict lies in wait with the potential to destroy everything their father has built for them.

The anime follows a salaryman who has a chance meeting with a girl named Ai on the train. They begin to meet every Monday on the train, with the man serving as her bodyguard on the crowded commute while they chat. (Source: ANN)

Third season of Future Card Buddyfight.