Actually, Alvaro already knew that the guards would take a safe stance and just let the visitors solve their problem on their own. If they started fighting, the patrol team would be the one eliminating these visitors.
The younger generations that took over the Sloan Family couldn't even get the sacred guardians' recognition, leading their family to decline day by day due to other forces.
Chi-Woo already threw away his plan to save up his merits and use it all for later. After seeing that his physical ranks didn’t go up even after training so hard, Chi-Woo realized how inefficient and wasteful he had been with his time. Furthermore, he could no longer ignore the perks of having abilities in his user information. Tiers not only expressed how strong an ability or person was, but they were also equated to influence in the hero world.
Even if the sacred guardian is still in a cat form and doesn't transform yet, the ownership imprint is still there until the day the owner releases the imprint to return the beast to the prairie. It happens when the owner can't handle the beast anymore.
After fusing with the Star Dragon Divine Tree, his physical body was comparable to the toughest treasure! Absorbing both spiritual veins at the same time wasn’t an impossibility.