I haven't met aliens, but I've met 'other beings'. They still can be seen in remote places where no one goes, mainly woods and mountains. For example, if you go to a forest at night, you may be fortunate enough to see a fairy for a brief moment. There are also other beings, but I'm not sure what they're called in English. Some are pretty dangerous though.

Come, visit this part of the world and maybe you'll see some of them.