Demon Watchmen

Rex and the others walk out of the office after Rex got the mission from the SCO.

'That other mission is overwhelmingly difficulty', Rex thought with goosebumps, he can't imagine if he was forced to take the other mission.

It will probably be the hardest mission he will ever face.

Thanks to SCO's generosity that allows Rex to choose the mission, Rex chose the right scroll instead of the left scroll.

The right scroll content is to identify the source of weird energy that is coming from south of Benrith City. 

It's a spying mission rather than the left scroll that told to go to Lupis City to check on a powerful creature that is said to be turned into a demon.

Although both missions are difficult with how close the location with the demonic cities,

The left scroll's creature is estimated to have higher power than the sixth rank, and this is nothing but bad news for Rex.