Affinity

If that was the case, it would explain things. Rui was an all-rounder, furthermore, his Martial Art was adaptive evolution. It was centered around the concept of overcoming by changing to overcome.

Thus, any hurdle, obstacle, or impedance could serve to stimulate his Martial Art. He would strive to overcome those problems by growing specifically to be able to handle them.

This was what he had done his entire time as a Martial Artist. The most recent and greatest example of it is the Shionel Dungeon. He had set the goal of being the first clear the Shionel Dungeon, an almost insurmountable task that only the most powerful Martial Artists in the Squire Realm were capable of even considering taking on.

The sheer number of Martial Squires that competed in the Shionel Dungeon back when he had yet to enter the Shionel Confederation was incredibly large. It was an abysmal herculean task to surpass all of them and clear the dungeon before all of them.