The genus of plants including the primrose (Primula vera).

any of numerous short-stemmed plants of the genus Primula having tufted basal leaves and showy flowers clustered in umbels or heads

a primrose - a type of flower

Demon World who appeared in episode 2 looking for Rin in Shuffle! and eventually moves in with him and Kaede Fuyou. She grows a strong attachement to Rin and also Kaede . She was particularly close to Nerine-chan for other reasons.