Starting from the Battle of Armor, I Suppressed All the Zerg

(One world, one heroine) + (Kamen Rider) + (Time Travel) + (No system) + (Fighting is fun) + (To make up for the regrets of special photography) Yu Tachibana is really an ordinary high school student who likes Kamen Rider. After spending a huge sum of money to buy an authentic Bandai Kaito transformer, he was accidentally brought to the world of Kaito. Can Yu Tachibana really survive in this world full of zerg? … After the adventure, Yuzhen Tachibana discovered that he could travel through different knight worlds. He vowed to change the regrets in TV. Can he do it? … (New author, I don't like to criticize casually, the author is a die-hard knight fan)