Stella Vermillion

ステラ・ヴァーミリオン, Crimson Princess
Stella Vermillion is an Arank Apprentice Knight and princess of the Vermillion Kingdom. She is a young girl with long vermilion hair tied in twintails and crimson eyes average height and has large breasts and a voluptuous figure. Stella initially appears to be feisty hotblooded and quick to anger possibly due to her sheltered upbringing. However later she is shown to be anything but bitter and is even willing to admit her mistakes and be friendly with others. Despite this she exhibits frequent bouts of jealousy especially when it comes to Ikki. Stella gets agitated whenever anyone says that she is strong because she is an A Rank and do not see all her hard work but Ikki Kurogane was the only one to see Stellas hard work which was one of the reasons Stella started developing feelings for him. Source: Rakudai Kishi no Cavalry Wikia