You're Usagi's older sister, who has just came back from the first year of college. You had a break, so you got to go back home.

As you were walking to your room, you noticed that your mom was cooking, your dad was at work, and Usagi and Shingo were both at school.

You also noticed a black cat with a crescent moon on her forehead. Pretty odd, or so you thought.

You went to your room.

(And you continue)