Crystal Jewels: Adventures of the Crystal Monsters! (partially found first Crystal Jewels anime series; 1991–1992)

Crystal Jewels: Adventures of the Crystal Monsters! is the 1991 anime series created by Maruko Jinko. It aired on TyataTV from November 1, 1991 to May 1, 1992 in Japan, with 52 of the 12-15 minute episodes broadcasted. It was succeeded by the 1992 long running anime series (which also aired six months and 12 days after the ending of the 1991 series), and simply titled, Crystal Jewels, and is currently running over 1,900 episodes to this day. The series have featured Crystal Monsters, Roaracryst, Ninecoat, Plantmore, Mouselette, and many of the other characters who also later appeared in the 1992 series. However, the character designs, the animation style, and the themes are different than the 1992 anime, also this anime is aimed at the younger audience (PG), while Crystal Jewels are aimed at teenage/young adult audiences in it's original format. The series is also produced in NTM (Nippon Titan Movie)

Availability and Surviving Materials
The series have aired from November 1, 1991 to May 1, 1992 on TyataTV in Japan. However, when it was planned for home releases, However, the NTM System, have rejected the home releases due to low budgets. Also, the series have three reruns: the first rerun from May 8, 1992 to October 30, 1992 (TV Tokyo), the second rerun is from April 30, 1993 to October 29, 1993 (TV Asashi), and the third rerun is from April 1, 1994 to October 1, 1994 (Fuji TV), and since 1995, it haven't reran anymore. And during those reruns, there weren't any home releases. Meanwhile,director, Sano Ukuto, decided to not rerun the series anymore or release the home video because he complains that the 1991 anime is different than the 1992 anime, and he doesn't like how the 1991 anime themes are. For an example, in the 1991 anime, Roaracryst (Roakijushiku), has a crush on Plantmore (Puranmora), while in the 1992 anime he and she are friends. Another reason is that the humor and the style is "cheezy". It is also Maruko Jinko's least favorite Crystal Jewels anime series. Since then, the episodes can be seen nowhere around the internet, with the fate of the episode animation videos unknown, and the only surviving materials we have left is the poster, the title cards from every episode, few of screenshots, and the animation cels.