Jin expected his power to be strong, even though there was a chance for it to be shit, but he didn't expect it to be this strong. Something like matter manipulation or the control over dark energy was what he expected, not Concept Manipulation.
Still, this was the best power he could have gotten.
In his eyes, he didn't see his power as a grand thing since he could already manipulate concepts to a degree, moreso brute force his way into controlling them, such as bending space to his will and so on.
However, since he could manipulate concepts, that means he could take that to a different level, especially when amplified by mana.
"No, no, this is actually insane. It's a great power! I can practically do what I want! This will be a huge help when I face...myself."
He wanted to test his powers right away, but he decided not to. His mana was very important, and since he had no mana inside his body, he wanted to change that.
And so he did.
