Raifu Nobu is the Father of Raifu Rein and Raifu Nawa. He was a Rear Admiral until he was killed by Charlotte Oven when the Big Mom Pirates attacked him because his soul was valuable. This happened when Vice Admiral Rein was just 12.
Nobu had little experience using swords, but he carried one around.
Nobu had one type of Haki, and that type was Observation Haki.
Nobu had long hair and a strong body at his age of 42. He was 6'06 and weighed 220 pounds.
Raifu Nobu vs. Zeus: Win
Raifu Nobu vs. Charlotte Oven: Killed