Travel through Kivotos and become Kamen Rider Saber

Bad news: the holy sword and the driving book hidden in the Sword of Truth were lost, and Lin Qiusheng was thrown into an inexplicable urban academy by his master.
Good news: He was chosen by the Flame Sword Reija and became Kamen Rider Saber.
When Megiddo and the monsters descended from the sky and tried to devour Kivotos and the fantasy world, Lin Qiusheng transformed into a fiery red warrior, stood in front of everyone, and asked that classic line.
"Choose quickly, surrender to me? Or die here?"
Weird guy: Is that even a question? I will create the future with my friends!
After all the battles were over, Lin Qiusheng looked at everything in front of him with a relieved smile, but the students' questions suddenly rang in his ears, which made him tremble!
Hinata: "Sensei! I'm an adult now. It's time to fulfill your promise and marry me!"
Yuuka: "Huh? I've never heard of this before. I was the one who made a promise with sensei in the first place!"
"What the hell is going on here? Sensei!"
Facing more and more students gathering around him, Lin Qiusheng smiled helplessly and announced loudly:
"Needless to say? You are all my wings!"