Saphir Maasa

Saphir is one of the twin princesses of the water country of Maasa. She takes on the role of becoming Ring Princess and gives Satou the Ring of Water to help save her country from Empire influence and so her sister Saphira can be with Marse. She becomes his 4th wife.

Saphir is a beautiful slender woman, she is flat chested, she wears a long white roman gown, with a thrilly lower part, she wears gold arm bands on both of her upper arms and roman sandles, she has dark blue hair and a pair of dragon horns that curve forward.

Saphir is a rude blunt person, she openly speaks her mind and doesn't care about what she says, However this is a typical Tsundere trait, and deep down she cares for others, especially her Sister and Satou, also Like Granart, she is not a Prude and shows zero embarrassment at being seen naked by Satou or being seen in a revealing Bikini

(Source: Tales of Wedding Rings Wiki)