Two Worlds Collide: Which Portal Will You Choose?

you're standing alone outside in the rain at night. Two portals suddenly open in front of you. In one you can see a beautiful sky world and in the other a dark place with many forests and cliffs. In each portal a man now stands and asks you if you want to join their world and fight against the other world to protect your own world. The man in the dark portal is wearing leather clothes and is about thirty years old, the person in the portal next to him is wearing white robes and also has a golden sword. But he doesn't seem particularly likeable to you. which world will you join? What do they offer you and what will you do after entering the portal?