Going to College and Slaying a Dragon

As an eighteen-year-old Japanese high school student, Koyu Nokawa, he is the only successor to an empty kendo gym in an old alley in Tokyo. I originally thought that it was a lie that Japanese high school students would save the world when they reached their age. If I hadn't been chasing the Dragon King with my knife all day long, I would have almost believed it! Instead of saving the world, he was inexplicably sent to college. Born in a declining mixed-race kendo family, his daily routine consisted of swinging his sword, taking mock exams, and guarding a dojo that couldn't even recruit apprentices. But he was such a loser, this young man who didn't even bother to do serious exercises during recess, but he had a rare A-level bloodline. He originally thought that he was the destined protagonist but the destiny had not come yet, until one day, a British aristocratic girl with blond hair and blue eyes knocked on the wooden door of the dojo. The π-looking girl broke into his peaceful life with clues about his father who had been missing for ten years and a gold-plated admission invitation. "Your father was a student in Kassel." A light word broke Xiaoyu Renchuan's obsession to "pass the college entrance examination safely (if he fails) and guard the kendo gym (fish all day long)". Xiaoyu embarked on a journey to Kassel, but he just wanted to treat it as an overseas study: to learn the skills of controlling speech spirits, and to cope with the academy's dragon-slaying mission. Xiaoyu Renchuan held the sword in one hand, looked at the group of dead servants in front of him, and lazily raised Yuanqie: "As I said, I'm just here to go to college. Dragon slaying is just a matter of course."