Why is the Female Emperor speaks in Coquettish Tone?

"I'm slightly unwell. I'll have the imperial physician treat me when I return to the palace. Lord Gu, there's no need to trouble yourself," Mu Yuyan, with a slightly reddened face, finished speaking in a different voice.

She had tried her best to alter her tone, but in doing so, the initially cool and elegant feeling was lost. Instead, it became somewhat inconsistent with her status... a bit flirtatious!

Oh~ If Master Gu finds out that this voice came from me, I'm really done for...

After Mu Yuyan finished speaking, a wave of shame surged over her like a tide.

She covered her hot and flushed face with her jade-like hand, and her earlobes were crystal clear and delicate.

But at this point, there was no choice but to speak!

Alas, Xiao Fei'er was dumbfounded. She never expected that Her Majesty could manipulate her voice like this. Could it be that she practiced day and night with Lord Gu?

In the pavilion!