Naomasa Ii (spelled with an uppercase and lowercase i) is a loyal vassal of Ieyasu and one of the Four Guardian Kings of Tokugawa. His unit's armor was painted crimson in battle in ode to the feared and respected Masakage Yamagata, giving them the nickname "Ii's Red Devils". Prior to his playable Samurai Warriors debut, he has been a generic general since the first title. His Nobunaga's Ambition counterpart is forty-first place in Gamecity's character popularity ranking for 2015. The Nobunaga no Yabou 201X poll for 4-star officers puts him in forty-ninth place.