The content of the Blood Soul Contract was for the three of them to keep silent about the existence of the injured Soul Emperor and not tell another soul about it, even going to the lengths of banning Eighth Stage Experts from entering the Tripartite Alliance Territory.
As for the Soul Emperor, he promised them riches equaling that of a lone Emperor Grade Territory and a way to break into the King Soul Stage!
Clouded by greed, selfishness, and an urge to improve themselves to an even higher level, they were tempted and softened to sign the Blood Soul Contract.
Besides, they didn't know who this Soul Emperor was neither did they know about the other Soul Emperors in detail. They didn't even know about the events happening in the Middle and Large Territories, much less the Soul Emperors who were elusive and secretive to the extreme.
