Day 19: Best friend
I love the relationship dynamic between Hanayo and Rin. I love the scene where Hanayo is here to support Rin when she wears a wedding dress, but I think I love even more when Rin (and Maki) push Hanayo towards making her dreams come true and becoming a school idol by joining μ's. It's really that episode that made me love Hanayo so much and that's when she became my best girl.