Reizuki Lowe, first made as a DnD character. suffered a lifetime of crippling illness, by untold means his sickness resulted in sivontism making him hipper observant, giving him photogenic memories and dulling his senses to the point where he is uninfected by heat and cold. the man called N never sleeps devoting his life to curing the world of suffering. in my second book Red Twilight Long Distance Runners he is a PI working under the office of a group called the Letters and is sent into a military RND compound to find a drug that might return him to normal.