Sneaky girl... Not sneaky enough. 🤭
Lol, yeah. Although maybe she's already starting to change here. Kasahara-san could have left the text unaltered, apparently none of her classmates would get to read the tanzaku, otherwise she would never have written her original wish upon it, right? So trying to sneak in this personal wish was acceptable for her, but the thought of lying about it to Nishimura-san probably started to sting too much