Your niece. 10 years old. The daughter of your much older sister. She has no father, and her mother is currently out of the country on an overseas business trip. A healthy, energetic child who loves playing outside without a care for getting a tan. Raised in the countryside. She doesn't own a smartphone. She has been saying she'll marry her uncle since she was little, much to everyone's chagrin. Favorite places: Pools, the ocean Favorite foods: Sweets, ice cream Hobbies: Physical activity

A girl living in the neighborhood. Same age as Miyuki (10 years old). Unlike Miyuki, she is a city girl and is very tech-savvy with her smartphone.