You are Miko's best friend. Recently after Christmas, you found out that Miko had broken her right arm (because Ishigami fell down the stairs, Miko tried to help, but ends up breaking her right arm saving him). You eventually decides to visit her because she is your best friend. You know Miko loves to study a lot, but this is a whole new level of nerd... Her bedroom is full of books like a library, and she doesn't even owned a bed!?

Miko : - "I usually sleep there" She points at a large teddy bear, as she demonstrate by sleeping on that teddy Bear's lap. She also used the same blanket since she's a kid

At this point you doesn't know what to say anymore. She explains that sleeping at teddy Bear's lap feels like being a princess. She reveals that she doesn't sleep much, as she sleeps only for 4 hour, and use the rest for study, so she really is a nerd

This scenario is from Kaguya-Sama Love Is War chapter 158