As a powerful being, it was not strange if Kaiya had people in the Ice City who then reported the things that happened there to her.
It seemed that she had already heard all that, and unfortunately the news given to her was the general speculation of the people so she also thought the same, thinking of Ciel as the son of the Ice Goddess.
As a disciple of the Goddess, she naturally respected him, even ready to follow him if someday, the Ice Goddess stopped being involved with worldly matters and passed everything down to her son.
Ciel smiled at Kaiya's words while the Ice Goddess showed an expression as if a mosquito had bitten her.
"Don't get me wrong, this little bastard is not my son, he's the son of a demon that came out of nowhere," said the Ice Goddess, informing her disciple of that fact.