Rider: Start with a Hand Rub Drive

324 Years ago, a sudden change occurred on Aquamarine. Monsters from the dark abyss and alien space came to Aquamarine for unknown reasons and began to kill. Along with the monsters, 100 strange belts appeared at the same time. Some chose to summon people, and a small number of them became petrified. The war has not stopped. A young man from Blue Star will inherit the will of Aqua Blue Star and start to fight back. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.