Seiji didn't know what to say to this and could only reveal a helpless expression.
"Er, sorry, since it's not your fault." Natsuya realized that she hadn't expressed herself properly upon seeing his expression, and hurriedly changed what she just said. "It's… actually a good thing."
"A good thing?"
"Yes, as that sensation means I'm increasing in power… that is to say, that's actually the way that your Mana manifests its power to increase the strength of your Spirit-branded Retainers," Natsuya explained.
It had the effect of increasing her power? Wasn't this exactly like "how girls restored magic powers" in certain anime!? Seiji's cheeks twitched upon hearing this.
"Although that feeling is… rather awkward, it's not much in exchange for the power increase I received," Natsuya said as her face flushed red again and she averted her gaze out of embarrassment.
"I see… sorry for having bothered you with it," Seiji smiled wryly.
