Dungeon Ending: I Am the Ultimate BOSS

Ten levels. Nine copies. A bunch of people died. In the end, only my brother and I were left. She stood in front of the entrance door, refusing to go in. "Sister, no, it should be us." She raised her head, her eyes so bright that she said, "We were ten years old when we ran out of the mountains." I was stunned, and the memories that had been buried for many years exploded. "You've got yourself into trouble." "Then I created ten worlds and searched for them one by one." I opened my mouth, but no sound came out. She came over and put her hand in mine. Cold, just like mine. "Found it."