"H-huh?"
She definetly didn't expect this random girl to start a conversation with her. She examines her, and then looks at her book.
"Um, m-my name is, um, Kasumi. And...I'll be careful..."
She hesitantly puts her book down, and then her sketchbook just to be safe. She definitely hopes it won't catch on fire, because both mean a lot for her. The book, she had to pay money for her, which she barely has as a 15 year old with no allowance, and her sketchbook, who her dear parents bought for her, in which she has stored many great memories. She shakes a little.