Kairos decided to ignore the rooms that didn't contain a blue figure within them altogether, considering them to be a waste of time. That meant he would even discard rooms that seemed rather easy to complete in favor of fighting those with actual techniques.
This also meant he no longer cared enough to extend his future vision beyond two seconds while closing the door behind him. However, he ended up using it more in the end because he used it to give him a brief moment of time to consider whether or not he wished to learn the specific technique.
The first time he found a room with a mana figure inside, the person in question was holding a spear. However, he also found that this particular person didn't have the highest proficiency with said spear.
While said skill was still above Kairos, it was quite rough and crude.
