The Chinese character '塩,' a part of ENYA's name, applies to the Chinese character for salt (塩) which is a specialty of Ako City, Naganori's territory, and the Chinese character '高,' a part of KO no Moronao's name, which applies to 'Koke' (高家), a position of master of ceremony which Yoshihisa held.
塩冶の「塩」は長矩の領地赤穂市の特産品、高師直の「高」は義央の役職「高家」に通じる。