For the first time, you saw Tsukasa being quiet at the school as he usually be the loudest of everyone at school. During lunchtime is when you decided to speak to him after everyone left the classroom.

"Hey Tsukasa, you're being oddly quite today. Everything's okay?"

Tsukasa's expression is startled

"What? N-No! I'm totally fine!"

He suddenly sniffled. Seems like he had a fever...

"It's not what you think it is!"