Stone

The man they call Stone (男彼らは呼んでストーン, "otoko karera wa yonde Sutōn"), commonly referred to as just Stone (ストーン, Sutōn) is a merchant of various goods, travelling the eastern half of the Great Shinobi Countries. In actuality, he is the Eastern Blossom (東の花, Azuma no Hana) of Black Crown, overseeing and directing most actions in said area.