Roakijushiku-san

Roakijushiku-kun (ロアキジュシクーサン lit. Mr. Roaracryst) is a Crystal Jewels book series that was released since January 1999 and ran 52 books, written by Idio Kyota and illustrated by Yumoto Somato, serialized in SagaPress and published by SagaBooks. The first volume is based on the stpryline of Crystal Jewels Arcade while the rest follows the Crystal Jewels Puzzle Brawl storylines throughout the series.

Plot and characters
Roaracryst, a spiderlike Crystal Monster, is one of the protectors of the Crystal World. He is one of the protectors with Ninecoat, Plantmore, and Mouselette, his childhood friends after their parents have gone missing. The four Crystal Monsters plan to venture for their missing parents while protecting the Crystal World. They also befriended many Crystal Monsters for help. Afterwards they join the crew to foil Maruka's plots.

In the Puzzle Brawl arcs, the story continues when Roaracryst and his friends ventures to keep the Spider princess from being captured. They went pass many evil plots and protecting innocent people. While that, Devil J, the boss of the Marukas and their fellows have plan for world domination. Roaracryst, the hero of the series, have a goal to become a most worshipped Crystal Monster. No matter how much he try, he has a positive spirit and a helping hand is a good way to fix things right.

Reception and development
Kyota have wrote the first chapter of the series in 1998 before it was published. He have self published it to the company for money. Kyota have stated that Roaracryst was his favorite character, like many fans of the Crystal Jewels franchise. While it was his favorite, he made Roaracryst the title character to have his own place as a lead character of the book series. Crystal Jewels 2 was his favorite game because of Roaracryst's transformations are introduced, along with other Crystal Monsters. Kyota stated that Roaracryst's transformation was the best, when he started writing his concept about evolution and devolution.