White Masquerade's Blue Oni
Haha, enhancers are pretty straightforward. The only thing to make enhancement special to to enhance something one wouldn't normally expect~lol the problem with that is, I don't feel like I'm smart enough myself to know how to play a genius character. Plus, it doesn't really fit into Ryou's character. He received private tutoring from a young age, but it was mostly in one ear and out the other.
Though I wouldn't worry too much about abilities being similar to Luffy's. All abilities have basically been used by one anime or another. My character's concept was based on this:
^ would totally be her theme song if you replace 'shaman king' with 'ex-or-cist'