One Piece: The Former World's Strongest Man

Ying Kuang wakes up in Impel Down. No one knows that this old man, who looks close to death, was the Fleet Admiral before the previous one, the senior of current three-armed-forces commander Kong, the teacher of Garp the Hero, and the mentor of Fleet Admiral Sengoku. He is the godfather of the Marines, the man who once led them to their peak single-handedly. Ying Kuang: “Garp is an idiot! Sengoku is a coward!” Aokiji: “When I was a kid, Fleet Admiral Ying Kuang held me in his arms!” Dragon: “All my progressive ideas came from a notebook. The original owner of that notebook was the old man Ying Kuang!” Golden Lion: “The old man broke out of Impel Down with me again. This time, it was even more spectacular!”