Let's go home. Chiharu and Rui, who live together as just the two of them, are step-sisters. Chiharu is a bit worried about Rui, who is always perfect both at school and at home. Rui has made a promise based on memories with her late grandfather... Warm and gentle days of Chiharu and Rui. All previously published volumes are being reprinted!! A heartwarming comedy featuring a second grader and a Madonna OL in its fourth volume!