All adventure manga needs the protagonist to gain more and more power. Are there manga/light novels where the protagonist simply has all the power he or she is ever going to have in the beginning of the story, and the rest of the story is about his or her usage of that power to overcome ever more problematic obstacles?
First off, it would have been nice to know which gengre you prefer. ^^" Aside from this Tenjou Tenge, Samurai Deeper Kyo and Variante may be worth a look, even if I can't say that much about them yet. ^^"
________________ "It's like love is a bonus in your life. Even without it, I'm just fine. I don't feel like pointlessly searching for it. You don't have to make yourself unhappy." (Ookami Shoujo to Kuro Ouji)
"Dreams, we say ... If you quit, then it's over. If you never give up, there will always be another chance." (Yume Miru Taiyou)