Reika Nishimura

Reika stands tall, her long brown hair falling in loose waves below her shoulders and her eyes a clear green. A hint of pink lipstick shows up in several scenes.

Ambitious and academically driven, she gravitates toward archeology and the question of how life on Earth first arose, and in her later appearances she takes up horseback riding as well. Her bond with Motoki grounds her, yet her ambition keeps steering her toward opportunities far from home.

During the anime's opening season she is revealed to be the reincarnation of Rikoukeidar, one of the Seven Great Monsters, and the holder of the Blue Rainbow Crystal. Her spotlight episode revolves around a chance to relocate to Africa for her archeological work, a prospect that tears at Motoki, who wants her to thrive without slipping out of his life. Makoto Kino first approaches Reika hoping to push her overseas so that she and Usagi might have a shot at Motoki, but she winds up sincerely encouraging Reika to chase her dream. Zoisite then corners the couple and pens them inside a wall of fire, twisting Reika into Rikoukeidar, though the guardians succeed in restoring her. She commits to the African move afterward and keeps her connection with Motoki alive across the distance. A short return in episode 41 finds her, midway through her studies in Africa, sealed within the Black Crystal by the corrupted Endymion, only to be freed once Sailor Mercury brings him down.

By the SuperS season she surfaces one final time, now riding horses and finished with her time in Africa. A decade long scholarship to England drops into her lap and crushes Motoki's mood, but after the guardians rescue her dream she sets off regardless, patching things up with him before she leaves.