There Are 300 Experts in the World, and 290 at Kowloon Middle School

It was a night filled with the thunder of cannons. Jiang Wudao gazed upon the Spring and Autumn Annals, and the enemy fleet was reduced to ash. When he woke again, he had transmigrated to a world that looked respectable, but wasn't quite as respectable as it seemed. The good news was that the spiritual qi revival had only just begun, and he was starting from the perfect position. The bad news was that he was, damn it, a teacher… The problem wasn't the job, but his age… Fortunately, he activated the golden finger every transmigrator needs. From then on, the world was turned upside down. What? The Pill God belongs to Jiulong? Wait, the peerless Sword God belongs to Jiulong too?… Who exactly is Jiulong? What? Jiulong Middle School! [This blurb isn't doing the story justice. Please read on, dear readers…]