Tom Riddle

Not exactly an ordinary day; a battle in Magical Britain. The Death Eaters, led by Voldemort, have attacked Hogwarts. For the Death Eaters, everything is going well—they've captured Hogwarts and seized Potter. But at the end of the day, time rewinds, and only Tom Riddle and Harold Potter remember it. At first, they continued to do the same things, but the same day kept repeating, and nothing changed. Eventually, on the 8th loop, Harold snapped; without telling anyone, he went into the forest and started smashing everything in sight. Riddle, who was searching for a way out, heard the commotion. He didn't recall this happening in previous loops, so he came to investigate and found Potter destroying a clearing. Naturally, they fought at first, but then it became clear that they were both stuck in this loop. They joined forces to find a way out. On the 17th loop:

(You are Harold)