Almost at the same time, in four other worlds, native creatures from their respective realms also appeared beside the four princes and launched an attack on them!
In the Crown Prince's world, gigantic earthworm-like monsters burrowed out from the ground, as huge as the mythical "Snake" and shaking the earth as they rolled.
When the Crown Prince tried to fly up into the sky to evade, the monster was able to spew lightning and gather storm clouds! It was not safe in the sky either.
In the Second Prince's world, phantom creatures appeared that seemed like ghosts but didn't fear the sun. Their attacks were not strong, but they were numerous, and they couldn't be killed. When their bodies were shattered, they would reassemble nearby.