Kamen Rider Teacher at Blue Archive

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…"