[Cube takes a moment and looks at his communicator. He frowns, but quickly, he nods to his friends.]
Excuse me. I'll be right back.

[After a short while, the little demon returns with a tray. Upon it are needles... for drawing blood.]
Uh, I-I'm sorry that took so long.
[Cube walked over, but stopped near Rika]
Cecil-san. For your health, I'm going to need to obtain a blood sample, okay? It's so the doctors can analyze it and make sure nothing more serious is going on, besides a fever.

[He gave a smile, as to not worry them, but had a feeling deep inside this wasn't going to be easy.]