This question asked by bluescrystal , How did Sophie become your childhood friend?

I was gonna leave this to the next chapter of the story but if you want spoilers than sure!

When I was young I usually always played with my friends at school but one day a new girl came to our class. She was really cute! We had the same popularity in our class so we became best friends. One day when I walked back home I saw a girl with messy red hair fall on the end of the road. I helped her get back to her house finding out that we live in the same building. She asked for a pickled plum so when I gave her one from a jar in her room, I found out that she was Sophie in my class! She told me to promise not to tell anyone about her weakness, I promised. So everyday I always helped her around until one day she performed in the place where her big sister works. I haven't seen her a lot since then since her fame grew so much. I was afraid of going there so we kinda lost contact. But ever since Kuro helped me get there, we've been closer than before! I can't leave Shiro in the dust for that long so you can just say it was a nice thing of me to do. Anyways, I'm glad I got to perform with Sophie. It's like I don't see her as much as before.

I still love Sophie as a friend though!
Thanks for asking!