Sister

The humorous and mean sister Shirai Chihiro (played by Kuroki Hana) and the younger brother Shirai Junpei (played by Sugino Haruka), who is obedient despite being teased by her sister, depended on each other during the period when their parents were away. After returning home after work, while drinking and eating their favorite things, they started conversations about love, work, hobbies, and life.