Bad news: The holy sword and the Driver Books hidden in the Sword of Logos are gone, and Lin Qiusheng has also been dumped by his master at some inexplicable urban academy. Good news: He was chosen by the Flame Sword Rekka and became Kamen Rider Saber. When Megid and monsters descend from the sky, intent on devouring Kivotos and the Wonder World, Lin Qiusheng transforms into a crimson warrior and stands before everyone, asking that classic question: "Make your choice. Will you submit to me, or die here?" The monsters reply, "Do you even have to ask? I'll create the future with my partners by my side!" After all the battles are over, Lin Qiusheng looks at everything before him and smiles with satisfaction. But then the students' questions suddenly ring in his ears, making him shudder! Hina says, "Sensei! I'm an adult now. It's time to keep your promise and marry me!" Yuuka says, "Huh? I-I never heard anything about this! I'm the one who made a promise with Sensei first!" "What on earth is going on, Sensei?" Faced with more and more students gathering around him, Lin Qiusheng gives a helpless smile and declares loudly, "Isn't it obvious? You're all my wings!"