"Kainé, you're starting to scare me. There's nothing wrong with the sky. It's suppose to get dark. That's normal." Touma said, concern plainly evident in his voice.

Although her response answered his earlier question, it only ended up creating more questions. Why was it so surprising to her that the sun was setting? Has she never been outside at night before? That didn't seem right considering how assertive and outgoing she was. Kainé was the exact opposite of a sheltered princess. Maybe she came from a tidally locked planet? That sounded ridiculous, but given the existence of infinite worlds, he couldn't rule it out as a possibility.

And there was also the question of what the hell Shades were.

"Now please take a deep breath and explain to me what a Shade is. Are they some kind of weird monster that comes out at night and attack people?"