Height: 152 cm (5'0")

The marriage partner chosen by the government for Yukari Nejima. Ririna is somewhat of a tsundere. She is mostly very blunt and speaks what's on her mind which earned her the nickname Snooty Sanada. She claims to have no special feelings for Yukari and acts as a love cupid for Yukari and Misaki. She is very interested in romantic stories and encounters.