"Jayden? Slave Marker?"
Leo could not believe Theodore's words for a moment; however, he realized something when he connected all the dots.
'My parent invented the Seal Resistance Serum; however, if it were manufactured in bulk and available in the market, it would make the Slave Maker's talent to engrave the enslavement seals useless.'
At first, Leo believed Theodore's master to be the Slave Marker; however, when he checked for the enslavement seals on Theodore and other city leaders, he didn't find any seals on them.
That's why he rejected his thought regarding Slave Marker being the master of the city leaders.
'Who would have thought these b*stards would swear their allegiance to the Slave Marker willingly.'
Since these city leaders didn't have any enslavement seals on them, Leo could tell they willingly became the Slave Marker's servants.
"Where can I find him?"
Since the Slave Marker was the true mastermind, Leo obviously wanted to kill him.