It was created using the world view of Shinobi Kill.

Mako, a second-year middle school girl who committed suicide in despair, was possessed by a ninja spirit and returned to the world. The ninja spirit, which had been dead for more than two thousand years, returned to the world with a strong desire for revenge. It lurked in the girls' school and continued to accumulate its power of revenge. In the explosions and fires, it vowed to kill all the ninja spirits in the world.

The ancient book "Ninja Words" records that when the world returns to the end of the Dharma, ninjas will resurface and bring about a dark and brutal rule. However, there is still a glimmer of hope that new ninjas will emerge from among the mortals to rise up in rebellion.

Now, deception, oppression, and exploitation are gradually filling the world. Ordinary people live in a false and manipulated life, ignoring cries for help and refusing to fight back against violence. Their blood and sweat are being slowly devoured, yet they remain oblivious. Once again, the world is heading towards the end of the Dharma.

When a cute, cuddly catgirl meets a cool, aloof school beauty, an unexpected event brings them together. The catgirl's charm and adorable antics gradually melt the school beauty's icy exterior, while the school beauty's attentive care makes the catgirl feel the warmth of home. From initial dislike to inseparable companionship, their daily lives are filled with sweetness and laughter.

When he came to his senses, Nan Zhixing found himself sitting on a moving train, speeding along, the scenery outside the window rushing past. He had no idea what the journey would take him next. "How did I get on this train? Where did this train leave from? Where am I going?" These questions swirled in Nan Zhixing's mind. He tried to recall, but as soon as he had a thought, a sharp pain shot through his head, followed by a torrent of memories. He, Nan Zhixing, a young man from the new century who once grew up under the red flag, inexplicably transmigrated on the day he received his university acceptance letter at eighteen. His body and mind were transmigrated, but into the Kamen Rider series world. Yes, the series world. Whenever Nan Zhixing achieved a hidden goal, he would move on to the next Kamen Rider world, like completing a game, until he had conquered all the Kamen Rider worlds. Time flew by, and from the age of eighteen when he first entered the Kamen Rider world, Nan Zhixing was now twenty-three years old. Next, he would board this train to a strange city called "Giwatos" to become a school teacher. Wait! Why would I go to Giwatos to become a teacher? What kind of strange city name is Giwatos? It sounds… somewhat familiar? Nan Zhixing lowered his head, trying to recall, but found he couldn't remember anything about these three questions. Normally, his memory wouldn't be so bad as to forget these things, but now, no matter how hard he tried, he still had no clue. Could this be another knight world, and I've actually been brainwashed and modified by the villainous organization? Nan Zhixing looked up, wanting to look at the opposite window to see if his appearance had been changed, but unexpectedly saw a line of slightly abrupt blue text: "System successfully activated, starting up…"

This world is a normal world in the eyes of normal people. This world is a world where danger lurks in the shadows. This world is a world protected by others. This is a story that begins with a spider monster. ...My name is Lin Hui, and although I'm just an ordinary high school student, I'm also Kamen Rider Decade! Protecting this city in an unknown place in the darkness. Okay, I digress. Basically, it's about someone who constantly fights monsters to obtain more cards. Then I encounter other Riders and acquire their Rider Cards. At the same time, I'm also able to change some...