Lecht Refraktia is the older sister of Rink, both of whom are twin nuns always seen together, rarely apart. She is very introverted and doesn't like talking to others. She is blind in one eye, thus wearing an eyepatch, and absolutely loves to read books.
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.