Liam's presence here was no coincidence.
For the princes and princesses present, their best candidate for heir was Liam—as the former crown prince, the current empress's brother, and the late emperor's legitimate son. In terms of legal rights and abilities, Liam was qualified to rule Camelot as emperor.
Now these people were urging Pluvia to establish an heir. Since most of the young Camelot family members were still too young, he might very well become their nominated heir.
A sister passing the throne to her brother was rare but not unprecedented.
The job wasn't technically difficult either. He just needed to play the nice guy on the sidelines without saying much. His brothers and sisters would do the talking, and they would eventually push him to the throne.
But even he was stunned when he heard his brother's words.