It was feudal Japan. An old woman was drawing on a big scroll. Her grandson walked into the room.
"What are you doing, grandmother?" the man asked. He studied the drawings. There were drawings of many things, like girls and a boy with what looked like a tiger, another boy that looked older than the other one, but instead of a tiger, this one had a creature that looked like a mouse, but had a pointy tail that looked like lightning, and other stuff.
"Last night I foresaw a prophecy. In it, a group of unknown heroes fought a dark force that almost consumed our universe. I'm currently recreating it on a scroll."
"Oh, grandmother, it was probably just a bad dream."
The old woman rubbed her chin "I'm not so sure, my boy..."