One piece:White Death

[What if the Marines had their own monster?] In the year 1516, two years before Monkey D. Luffy sets sail, a 23-year-old Marine prodigy named Danzo Aiko has already become a legend whispered across the Grand Line. The Yuki Yuki no Mi—a Logia Devil Fruit that commands snow and ice itself—flows through his veins. But that's only the beginning. Aiko has achieved what only the world's apex warriors can claim: Perfect mastery of all three types of Haki. His Armament can shatter bones from within. His Observation sees seconds into the future. His Conqueror's Haki makes emperors pause. They call him the "White Death." Pirates flee at the mention of his name. Even the Yonko acknowledge his threat. But power comes with a price, and sight comes with horror.