In his previous life, he was a middle-aged office drone in his forties. He had tremendous athletic ability as a young man, but gave up training after a family upheaval, a regret that haunted him for the rest of his life. Reborn at seventeen, in his second year of high school, he has the mind of a middle-aged man and the body of a teenager, and is determined to pursue his dream again. Steady and reserved, he doesn’t say much, but he knows exactly what’s going on. The sharp eye and resilience he developed through years of navigating the working world are his greatest hidden advantages. He looks like an ordinary high school student, but every so often, his eyes reveal something far beyond his years.