Time Travel: What Should I Do If the Lord Only Knows Small Fireballs?

Allen, who was practicing small fireballs, looked confused as two suns, one blue and one yellow, appeared in the sky at the same time. "What the hell, I just learned how to use small fireballs and the world is about to be destroyed?" Allen looked at the blue sun that was about to explode in the sky with a confused look and his mood suddenly collapsed. --------------- Also known as "Time Travel: I just learned magic and I traveled through time again" and "Time Travel: What should I do if the lord only knows the fireball technique? It's quite urgent to wait online!