Sumaru Yuki truly moved in to live with Okisaka Fukuko, but didn't completely move in to live with her.
At present, Okisaka Fukuko is a patrol officer, who needs to take shifts at the Police Box. Every three to four days she would work a night shift, and would not be at home for the entire night. On these nights, Sumaru Yuki plans to run over and stay at her master's house.
Her status as a disciple hadn't changed; after school—Okisaka Fukuko is preparing to help her register her residence and send her to primary school—when she gets out of school, she's ready to continue earning money with her master by setting up stalls, and also continues to learn from her master every day, completing the given homework, planning to jointly slaughter a fat sheep in the future.
