Aya Lu and Sahali won the chess match with Aya Lu. Welcome to the Power-First Class shows the story of the duel between the tower commander and the tower commander: Sahaliu won the long-awaited decisive battle with Ayako in the final chess game, which also made the class win the duel. However, after the exam, Yuecheng revealed the inside story of its interference with the main players of Ayako. Sahaliu was very angry at the school's interference in the duel between the two men. After that, the two men confronted each other again in the library, and Aya won. Sahaliu frankly admitted his failure and admitted that Ayako was a real genius-not a fake.