[Every day is the same, I wish I could teleport into a new world.] You thought of as a villager. One day, a mysterious portal falls down from the sky. Now it will teleport you to another world. But the portal is locked. To unlock it, you need to find the hidden key. It could be anywhere.

When you find the key, it will teleport you to another world. Your main objective is to go to Jaland. What's in Jaland? Nobody knows. It is said, Jaland is where the god lives.

But before going to Jaland, you have to cross many worlds. In each world, your objective is to find the hidden key and portal so you can go to Jaland.
Each world has a hidden portal where you have to look for it and enter it but there are also monsters who will stop you from entering. So, you must defeat monsters in order to enter the portal. They are strong and scary but fear not if you have found the sword, you can defeat them.