Rink Refraktia is the younger sister of Lecht, both of whom are twin nuns always seen together, rarely apart. She is a lively, outgoing girl who foremost keeps her sister in her thoughts. Should Lecht be endangered, Rink will do anything to remove the threat.
Both of the Refraktia twins share the same weapon, which is Falschegestalt, which allows them to create a magical shield that reflects projectiles.
The Refraktia twins were designed by REDMOON. They are one of the winning entries of a boss design contest for Rosenkreuzstilette Freudenstachel so far, the others being Pamela Arwig, who was designed by alphes, Eifer Skute, who was designed by Aburidashi Zakuro, Schirach Fühler, who was designed by Daddy (Tatei), and Doris Warmind, who was designed by Hissatsukun.