Larry Johnson (after ep 5)

You were born an ordinary child, but at one point your planet was attacked by black entities, and then you discovered the gift of traveling between worlds.

An ancient artifact - a pendant around your neck helps to facilitate the movement, but still there is a chance to get into an unknown and dangerous world.

Once it happened, against your will you found yourself in a world that had already been consumed by these creatures, you were almost killed, but surprisingly someone saved you. It was an elderly man in a brown cloak. As you talked, you learned that he wasn't really that old, and that his transformation was due to displacement. From then on, you traveled together, trying to find your home worlds.

Now you stopped in a relatively peaceful world and sat in a ruined city, the reasons for the destruction of which you did not know.