Mugen Mask

Bind the boss system and travel through the era of Heisei Kamen Rider. At the beginning of each world, you must become the strongest person in combat and a boss-level figure behind the scenes. The more I can change the plot of the original work, the longer I can extend its existence. Kening said, "I don't want to disappear." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.