 He has a younger twin brother who keeps the Legendary White Knife.He knows that Scorpio Worm is Tsurugi's true form but has chosen not to tell him because Tsurugi, as the last of the famous British Discabil family, must, in one form or another, carry on its name.Jiiya is respected by Tendou who refers to him as "Humanity's Treasure" due to his incredible skill as a chef.