As the male student dashed across the finish line, the physical education teacher precisely pressed the stopwatch in his hand.,For example, "Running." After activating this skill a month ago, he only took half a month to raise it to Lv3. His time improved from the original 3 minutes and 42 seconds for one kilometer to 2 minutes and 36 seconds.,Moreover, the level-ups of "running" didn't just improve his understanding and speed of running. They also significantly enhanced his physical fitness.。