Kamen Rider Kabuto: Four Kingdoms Melee

In a certain country, due to the discovery of powerful power, the knight system was created, and the knight system has since become a weapon of war. Driven by the knight system, that country, Japan, was divided into four major kingdoms: Xu Kingdom, Shen Kingdom, Yu Kingdom, and Liang Kingdom. The war has begun! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.