Kamen Rider: the Strongest Alien

In an inconspicuous house, our protagonist, like most time-travelers, traveled through time without warning. What interesting things will happen when the powerless protagonist time-travels into the world of the King of Time? Note: There is no system in this article, and the strength depends entirely on the protagonist himself. If you don't like it, you don't have to read it. If you have any questions, you can add me **, ** This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.