The end of the Wano Arc finally introduced Ryokugyu to One Piece fans, and he made an immediate impression by quickly defeating the remnants of Kaido's crew. Ryokugyu is a Marine who was appointed to the rank of Admiral after being conscripted through a World Military Draft during the series' two-year timeskip. In addition to strong Haki, Admiral Ryokugyu also possesses the power of the Woods-Woods Fruit, making him one of the strongest Marines in One Piece.
Source：https://www.cbr.com/one-piece-characters-who-can-beat-ryokugyu/
