Sagara Seiji

Sagara Seiji (相楽誠司) is one of the main protagonists in Shining! Royal PreCure and appeared as a minor character in Happiness Charge PreCure!.. He is the childhood friend of Aino Megumi as well as her neighbor and classmate. He understands Megumi's weak and strong points and often worries about her. His alter ego is Cure Knight (キュアナイト) the Prince of Swords and his theme color is blue.