No way to be squid by a virgin younger brother ... Shiori Kamisaki appears in the popular "Unequaled Younger Brother" series! Shiori's parents had divorced in the past, and Shiori lived with her mother and her younger brother with her father. Eventually, the parents returned and remarried, and the four lived as a family again. Perhaps because of such a complicated environment, Shiori's younger brother Yuya began to create walls for romance and women. Shiori, who is worried about his younger brother, tempts him with a light joke to unravel his heart.