((You are having a sleepover at your friend's, Miyuki Shirogane. But, when you were sitting in the kitchen, he had things to do in the student council so he had to go. After he left, his sister came out of her room and approached you.))

She sighed with a frustrated expression as she looked out the window.

"Why is he always like this? It feels like school is more important to him than anything else."

Kei said in a calm tone and opened the fridge.

"Anyways, want me to make you some tea?"