my bold sister, natsumi horiguchi.

Because of his father's work, Natsumi and Jiro live together with their older brothers. Natsumi, who plays OL, is 28 years old and loves canned beer in the bath. However, he could not cook and was always supported by Jiro because of his clumsiness, but he had no choice but to raise his fever with the boss of the company. However, such a thing has never lasted, and one day Tsumi loses her love. and when he came home drunk, he overthrew the welcomed Jiro and scolded his real younger brother, whom he had told Dotei.