Today is Daeboreum.
Daeboreum (literally "Great Full Moon") is a Korean holiday that celebrates the first full moon of the new year of the lunar Korean calendar which is the Korean version of the First Full Moon Festival. This holiday is accompanied by many traditions.
one of traditions of Daeboreum Jwibulnori (Korean: 쥐불놀이).
A traditional game that is played the night before Daeboreum. They burn the dry grass on ridges between rice fields while children whirl around cans full of holes, through which charcoal fire blaze. These cans fertilize the fields and get rid of harmful worms that destroy the new crops.