Nurse Angel Ririka SOS (ナースエンジェルりりかSOS, Nāsuenjeru Ririka Esuōesu?) is a magical girl series. The manga was written by novelist Yasushi Akimoto and illustrated by Koi Ikeno, and ran in Ribon Magazine. The anime based on it ran in the summer of 1995 and has 35 episodes, and is renowned director Daichi Akitaro's debut as a series director.

Source: Wikipedia